Finding the Fourth Proportional to 629,856,643.20, 944,784,964.80 and 569,591,233.80
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Solution
The fourth proportional to 629,856,643.20, 944,784,964.80 and 569,591,233.80 is: 854,386,850.70
Step by Step Solution
- Step 1: Write the proportion equation
629,856,643.20 : 944,784,964.80 = 569,591,233.80 : x - Step 2: Convert to fraction form
629,856,643.20/944,784,964.80 = 569,591,233.80/x - Step 3: Cross multiply
629,856,643.20x = 944,784,964.80 × 569,591,233.80 - Step 4: Simplify right side
629,856,643.20x = 538,141,233,776,121,472 - Step 5: Solve for x
x = 538,141,233,776,121,472/629,856,643.20 - Step 6: Final answer
x = 854,386,850.70
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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.