Finding the Fourth Proportional to 933,975,173.49, 1,288,901,060.38 and 557,664,641.75
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Solution
The fourth proportional to 933,975,173.49, 1,288,901,060.38 and 557,664,641.75 is: 769,586,353.57
Step by Step Solution
- Step 1: Write the proportion equation
933,975,173.49 : 1,288,901,060.38 = 557,664,641.75 : x - Step 2: Convert to fraction form
933,975,173.49/1,288,901,060.38 = 557,664,641.75/x - Step 3: Cross multiply
933,975,173.49x = 1,288,901,060.38 × 557,664,641.75 - Step 4: Simplify right side
933,975,173.49x = 718,774,548,088,007,936 - Step 5: Solve for x
x = 718,774,548,088,007,936/933,975,173.49 - Step 6: Final answer
x = 769,586,353.57
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.