Finding the Fourth Proportional to 8,149,151,207.70, 12,223,726,811.55 and 8,149,151,207.70
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Solution
The fourth proportional to 8,149,151,207.70, 12,223,726,811.55 and 8,149,151,207.70 is: 12,223,726,811.55
Step by Step Solution
- Step 1: Write the proportion equation
8,149,151,207.70 : 12,223,726,811.55 = 8,149,151,207.70 : x - Step 2: Convert to fraction form
8,149,151,207.70/12,223,726,811.55 = 8,149,151,207.70/x - Step 3: Cross multiply
8,149,151,207.70x = 12,223,726,811.55 × 8,149,151,207.70 - Step 4: Simplify right side
8,149,151,207.70x = 99,612,998,108,937,551,872 - Step 5: Solve for x
x = 99,612,998,108,937,551,872/8,149,151,207.70 - Step 6: Final answer
x = 12,223,726,811.55
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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.