Gina Rinehart

Meet the Billionaire Women Who Made It On Their Own

The Forbes magazine annual list of the world's billionaires has always been scant of women, but 35 more women did join this year's record-length list of 1,426 global über-rich. They now number 138, or 9.7 percent of the total. Last year, they represented 8.5 percent of the list.

The World's Richest Woman: How Gina Rinehart Earns her Billions

Most of the richest women in the world have one thing in common: It was their husbands or fathers who actually earned the wealth. But while Australian mining magnate Gina Rinehart inherited $75 million from her dad, it was by her own efforts that she multiplied that sum -- 386 times.