The home side needed nine runs off the last over.
Pakistan needed 323 runs on the final day to win.
Rhodesia had been set 300 to win and in the final hour of the game they needed six more runs.
At the close of the second last day's play, Australia were 113-2, needing only 64 more runs.
The Royals needed 18 runs at the end of the eighteenth over.
The Royals needed three runs from the last two balls.
By that time, though, she had made the first century of the series, and England only needed five more runs to win.
England were 1/5 after the fifth ball and needed two runs for victory.
England need just a few more runs to beat Australia.
With one over to go, Perth needed 13 runs for victory.