What are the differences between a latte, a cappuccino, and a cortado in terms of their ingredients and preparation methods?

The main differences between a latte, cappuccino, and cortado lie in the ratio of espresso, steamed milk, and foam. A latte has more steamed milk and less foam, a cappuccino has equal parts of espresso, steamed milk, and foam, while a cortado has equal parts of espresso and steamed milk with minimal foam.