Jupiter and Saturn have the two largest diameters of all the planets. The diameter of Jupiter is 88,846 miles and the diameter of Saturn is 74,897 miles. Jupiter's diameter is approximately equivalent to the sum of 4.6 times the diameter of Mercury and the diameter of Saturn. What is the approximate diameter of Mercury? Write an equation that models the diameter of Jupiter in terms of the diameters of Saturn and Mercury. Let m represent the diameter of Mercury.