Finding the Fourth Proportional to 639,738,082.05, 959,607,123.08 and 536,425,951.65
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Solution
The fourth proportional to 639,738,082.05, 959,607,123.08 and 536,425,951.65 is: 804,638,927.48
Step by Step Solution
- Step 1: Write the proportion equation
639,738,082.05 : 959,607,123.08 = 536,425,951.65 : x - Step 2: Convert to fraction form
639,738,082.05/959,607,123.08 = 536,425,951.65/x - Step 3: Cross multiply
639,738,082.05x = 959,607,123.08 × 536,425,951.65 - Step 4: Simplify right side
639,738,082.05x = 514,758,164,205,625,536 - Step 5: Solve for x
x = 514,758,164,205,625,536/639,738,082.05 - Step 6: Final answer
x = 804,638,927.48
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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.