Finding the Fourth Proportional to 915,536,475.80, 1,373,304,713.70 and 528,552,949.40
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Solution
The fourth proportional to 915,536,475.80, 1,373,304,713.70 and 528,552,949.40 is: 792,829,424.10
Step by Step Solution
- Step 1: Write the proportion equation
915,536,475.80 : 1,373,304,713.70 = 528,552,949.40 : x - Step 2: Convert to fraction form
915,536,475.80/1,373,304,713.70 = 528,552,949.40/x - Step 3: Cross multiply
915,536,475.80x = 1,373,304,713.70 × 528,552,949.40 - Step 4: Simplify right side
915,536,475.80x = 725,864,256,851,057,536 - Step 5: Solve for x
x = 725,864,256,851,057,536/915,536,475.80 - Step 6: Final answer
x = 792,829,424.10
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.