Home / 318,885,213.90-440,061,592.59-172,207,484.94

Finding the Fourth Proportional to 318,885,213.90, 440,061,592.59 and 172,207,484.94

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Solution

The fourth proportional to 318,885,213.90, 440,061,592.59 and 172,207,484.94 is: 237,646,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,885,213.90 : 440,061,592.59 = 172,207,484.94 : x
  2. Step 2: Convert to fraction form
    318,885,213.90/440,061,592.59 = 172,207,484.94/x
  3. Step 3: Cross multiply
    318,885,213.90x = 440,061,592.59 × 172,207,484.94
  4. Step 4: Simplify right side
    318,885,213.90x = 75,781,900,078,614,832
  5. Step 5: Solve for x
    x = 75,781,900,078,614,832/318,885,213.90
  6. Step 6: Final answer
    x = 237,646,327.82

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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.