Answer: Andrew Carnegie, Henry Ford, and Oprah Winfrey
Explanation: Andrew Carnegie: Carnegie was an angel investor who was really active. He invested in different automobile firms, messenger facilities, and land that held oil deposits using the money earned from his steel business. Carnegie had an estimated net worth of $350 million following his death in 1919, which would be worth about $5.5 billion in 2021 dollars.
Henry Ford: Ford soon founded the Detroit Car Company using the designs. The business was short-lived, though, as Ford's expectations were not met by the goods. Before founding the Ford Motor Company that he is renowned for, he went on to found the Cadillac Motor Car Company, which also collapsed. His third effort at an automotive manufacturer made him very successful, and with annual revenue of over $155.9 billion, the company remains a continuing concern.
And for Oprah Winfrey: Winfrey became a millionaire at the age of 32 when her talk show received national syndication. Winfrey negotiated ownership rights to the television program and started her own production company.
