Finding the Fourth Proportional to 746,392,207.20, 1,119,588,310.80 and 331,868,227.20
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Solution
The fourth proportional to 746,392,207.20, 1,119,588,310.80 and 331,868,227.20 is: 497,802,340.80
Step by Step Solution
- Step 1: Write the proportion equation
746,392,207.20 : 1,119,588,310.80 = 331,868,227.20 : x - Step 2: Convert to fraction form
746,392,207.20/1,119,588,310.80 = 331,868,227.20/x - Step 3: Cross multiply
746,392,207.20x = 1,119,588,310.80 × 331,868,227.20 - Step 4: Simplify right side
746,392,207.20x = 371,555,787,899,038,592 - Step 5: Solve for x
x = 371,555,787,899,038,592/746,392,207.20 - Step 6: Final answer
x = 497,802,340.80
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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.