1.33/.51/.292 is about 8.9km. You're spreading the ocean over the surface of the entire earth instead of just the continents. Average ocean depth is 12,000 feet

1.33/.51/.292 is about 8.9km. You're spreading the ocean over the surface of the entire earth instead of just the continents. Average ocean depth is 12,000 feet, and there's less land than ocean, so the answer must be greater than 12,000 feet.