Finding the Fourth Proportional to 458,496,819.60, 687,745,229.40 and 313,377,997.20
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Solution
The fourth proportional to 458,496,819.60, 687,745,229.40 and 313,377,997.20 is: 470,066,995.80
Step by Step Solution
- Step 1: Write the proportion equation
458,496,819.60 : 687,745,229.40 = 313,377,997.20 : x - Step 2: Convert to fraction form
458,496,819.60/687,745,229.40 = 313,377,997.20/x - Step 3: Cross multiply
458,496,819.60x = 687,745,229.40 × 313,377,997.20 - Step 4: Simplify right side
458,496,819.60x = 215,524,222,573,226,528 - Step 5: Solve for x
x = 215,524,222,573,226,528/458,496,819.60 - Step 6: Final answer
x = 470,066,995.80
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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.