Finding the Fourth Proportional to 574,944,003.20, 862,416,004.80 and 438,895,107.20
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Solution
The fourth proportional to 574,944,003.20, 862,416,004.80 and 438,895,107.20 is: 658,342,660.80
Step by Step Solution
- Step 1: Write the proportion equation
574,944,003.20 : 862,416,004.80 = 438,895,107.20 : x - Step 2: Convert to fraction form
574,944,003.20/862,416,004.80 = 438,895,107.20/x - Step 3: Cross multiply
574,944,003.20x = 862,416,004.80 × 438,895,107.20 - Step 4: Simplify right side
574,944,003.20x = 378,510,164,877,691,712 - Step 5: Solve for x
x = 378,510,164,877,691,712/574,944,003.20 - Step 6: Final answer
x = 658,342,660.80
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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.