Finding the Fourth Proportional to 664,344,590.10, 996,516,885.15 and 631,088,193.30
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Solution
The fourth proportional to 664,344,590.10, 996,516,885.15 and 631,088,193.30 is: 946,632,289.95
Step by Step Solution
- Step 1: Write the proportion equation
664,344,590.10 : 996,516,885.15 = 631,088,193.30 : x - Step 2: Convert to fraction form
664,344,590.10/996,516,885.15 = 631,088,193.30/x - Step 3: Cross multiply
664,344,590.10x = 996,516,885.15 × 631,088,193.30 - Step 4: Simplify right side
664,344,590.10x = 628,890,040,642,257,024 - Step 5: Solve for x
x = 628,890,040,642,257,024/664,344,590.10 - Step 6: Final answer
x = 946,632,289.95
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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.