How the world's youngest billionaires spend their money

Three of the world's five youngest billionaires still live at home - and they're making the most of their twenties thanks to their well-stocked bank...

Alexandra Andresen is the world's youngest billionaire (Instagram)

For most people in their twenties, life is a constant balancing act between paying off student debts and finding the funds to be independent while still having fun.

That's not the case for the world's super-young, super-rich elite.

We took a glimpse at the lives of the world's five youngest billionaires — all 27 and under — to see how they spend their days — and their seemingly unlimited funds.

From zooming ferraris to international dressage competitions, scroll down to meet the world's five youngest billionaires, presented by age in ascending order — and see how they spend their fortunes.

Meet the world's youngest billionaire — Alexandra Andresen.

Alexandra has a net worth of $1.3 billion (£988.1 million) thanks to her father Johan Andresen’s work in investment banking.

21-year-old Alexandra is a keen horse rider, and has at least four horses.

She makes sure her “boys” are kept in the best nick with plenty of veterinary and grooming appointments.

She's part of Norway's dressage team...

...And like many 21-year-olds, she enjoys getting glammed up and going out with friends. It's more glitzy rooftop bars than sticky Wetherspoons, however.

But it's not all ponies and sky-high martinis. Alexandra also loves the outdoors, hiking, camping, and fishing...

...And skiing a bit further afield, too.

Alexandra is a self-proclaimed jet-setter. One of her destinations this year was the beautiful Mumbai in India...

...Where she got to partake in even more of her beloved outdoor pursuits.

Alexandra and her 22-year-old sister Katharina have five dogs between them — including a purebred boxer and bulldog with price-tags upwards of £500 ($650) and £1,000 ($1,320) respectively.

Both sisters live at home with their father and mother, pictured here with Katharina.

When their father transferred most of his funds to his daughters in 2005, the money was split equally between Alexandra and Katharina (pictured here).

22-year-old Katharina is also a horse-riding fan, but less so than her younger sister.

Katharina enjoys staying up to date with the latest fashion trends, and favours a Louis Vuitton bag. This one's value is estimated at £1,470 ($1,900).

Another from her collection, this holiday-ready Louis Vuitton duffel, is valued at £1,420 ($1,870).

Katharina is a self-proclaimed “shoe-aholic.” These limited edition Louboutin pumps have an estimated value of £485 ($640).

These pearl-encrusted, heeled Gucci loafers — also from her collection — will cost you £750 ($990).

The older Andresen sister bought her first Rolex earlier this year, worth nearly £7,000 (US $9,000).

As well as fashion, she loves mixing up her style with expensive-looking haircuts and makeup...

...But her pride and joy is her pricey bulldog-baby “Tycho,” who her Instagram account in almost entirely devoted to.

Just behind the Andresen sisters is Gustav Magnar Witzøe, who is also among Norway's super-rich youngsters — and is the third youngest billionaire in the world.

This 23-year-old is worth a staggering $1.8 billion (£1.4 billion) and owns 47% of Norwegian salmon producer “Salmar,” which was gifted to him in 2013 by his dad Gustav Witzoe, pictured here.

Gustav (also known as Gus) is into his fashion just like Katharina — especially trainers. He often features in the front row of various Norwegian fashion shows.

The 23-year-old also favours a cigar...

...Especially while on his travels, which he partakes in fairly regularly. Here he is in Paris in July...

...And Padang Tegal in Indonesia in April.

Witzøe is partial to a bit of ink, like many 23-year-old lads, and has at least one full sleeve.

His life is full of perks thanks to his lucrative background, like jet-skiing...

...Top-notch seats at sold-out concerts...

...And rounds of golf all over the world. Here he is practising his swing in Las Vegas.

Like the Andresen sisters, Witzøe also has a pet pooch he loves to pamper. His blue Staffordshire bull terrier, worth north of £350 ($460), features heavily on his Instagram.

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