Arrange Saturn, Uranus, Jupiter in the increasing order of their masses.
Jupiter is of <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> 1.90×1027 kg, Saturn is of 5.68×1026 kg and Uranus is of 8.68×1025 kg. Hence, Jupiter is the heaviest planet followed by Saturn, Neptune and Uranus.