Home / 381,677,691.60-572,516,537.40-136,311,381.90

Finding the Fourth Proportional to 381,677,691.60, 572,516,537.40 and 136,311,381.90

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Solution

The fourth proportional to 381,677,691.60, 572,516,537.40 and 136,311,381.90 is: 204,467,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,677,691.60 : 572,516,537.40 = 136,311,381.90 : x
  2. Step 2: Convert to fraction form
    381,677,691.60/572,516,537.40 = 136,311,381.90/x
  3. Step 3: Cross multiply
    381,677,691.60x = 572,516,537.40 × 136,311,381.90
  4. Step 4: Simplify right side
    381,677,691.60x = 78,040,520,373,597,040
  5. Step 5: Solve for x
    x = 78,040,520,373,597,040/381,677,691.60
  6. Step 6: Final answer
    x = 204,467,072.85

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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.