Who was the richest passenger that died on RMS Titanic?

John Jacob Astor IV was an American businessman, a real estate builder, investor, inventor, writer and a prominent member of the Astor family. He was the richest passenger aboard the Titanic and was thought to be among the richest people in the world at that time, with a net worth of nearly $87 million when he died (equivalent to $2.16 billion in 2016)