Gina Rinehart’s children debut on Forbes rich list

Gina Rinehart’s four children have joined their billionaire mum among the world’s richest people.

Forbes latest Billionaires List shows Rinehart’s children – John Hancock, Bianca Rinehart, Ginia Rinehart and Hope Welker – have estimated fortunes of $US1.3 billion each, mainly due to money from a family trust fund which owns 23.45 per cent of their mother’s mining company, Hancock Prospecting.

Holding onto 69th spot on the rich list, Gina Rinehart's net worth has risen to $US17.4 billion, thanks to a lift in iron ore prices.

She remains Australia’s richest person, with a big lead over nearest rival property developer Harry Triguboff who came in 167th place on the global list with a fortune of $US9.2 billion.

Rinehart is also ranked the world’s seventh richest woman, with Alice Walton, daughter of the founder of US retail giant Walmart, taking out the top spot with a fortune estimated to be $US42 billion.

The mining mogul’s kids were among 10 Australians making their debut on the rich list.

Forty-three Australians made the rich list this year, including Westfield chairman Frank Lowy and casino magnate James Packer.

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In total the list boasts a record 2208 billionaires whose combined net worth hit $US9.1 trillion.

Amazon founder Jeff Bezos topped the list with a worth of $US112 billion, making him the first person to surpass the $US100 billion mark.