Finding the Fourth Proportional to 801,581,481.30, 1,202,372,221.95 and 393,434,793.30
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Solution
The fourth proportional to 801,581,481.30, 1,202,372,221.95 and 393,434,793.30 is: 590,152,189.95
Step by Step Solution
- Step 1: Write the proportion equation
801,581,481.30 : 1,202,372,221.95 = 393,434,793.30 : x - Step 2: Convert to fraction form
801,581,481.30/1,202,372,221.95 = 393,434,793.30/x - Step 3: Cross multiply
801,581,481.30x = 1,202,372,221.95 × 393,434,793.30 - Step 4: Simplify right side
801,581,481.30x = 473,055,066,612,560,000 - Step 5: Solve for x
x = 473,055,066,612,560,000/801,581,481.30 - Step 6: Final answer
x = 590,152,189.95
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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.