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Finding the Fourth Proportional to 391,603,499.86, 587,472,170.90 and 161,446,769.14

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Solution

The fourth proportional to 391,603,499.86, 587,472,170.90 and 161,446,769.14 is: 242,197,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,603,499.86 : 587,472,170.90 = 161,446,769.14 : x
  2. Step 2: Convert to fraction form
    391,603,499.86/587,472,170.90 = 161,446,769.14/x
  3. Step 3: Cross multiply
    391,603,499.86x = 587,472,170.90 × 161,446,769.14
  4. Step 4: Simplify right side
    391,603,499.86x = 94,845,483,951,466,912
  5. Step 5: Solve for x
    x = 94,845,483,951,466,912/391,603,499.86
  6. Step 6: Final answer
    x = 242,197,743.34

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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.