Ice at -19.2 °C and steam at 129 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 40.3 °C is present. Ignoring the container and the equilibrium vapor pressure of the liquid at 40.3 °C, find the ratio of the mass of steam to the mass of ice. The specific heat capacity of steam is 2020 J/(kg C°).