Finding the Fourth Proportional to 8,899,156,961.97, 12,275,250,500.13 and 5,279,618,126.99
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Solution
The fourth proportional to 8,899,156,961.97, 12,275,250,500.13 and 5,279,618,126.99 is: 7,282,558,935.73
Step by Step Solution
- Step 1: Write the proportion equation
8,899,156,961.97 : 12,275,250,500.13 = 5,279,618,126.99 : x - Step 2: Convert to fraction form
8,899,156,961.97/12,275,250,500.13 = 5,279,618,126.99/x - Step 3: Cross multiply
8,899,156,961.97x = 12,275,250,500.13 × 5,279,618,126.99 - Step 4: Simplify right side
8,899,156,961.97x = 64,808,635,053,829,406,720 - Step 5: Solve for x
x = 64,808,635,053,829,406,720/8,899,156,961.97 - Step 6: Final answer
x = 7,282,558,935.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.