Home / 138,024,008.70-207,036,013.05-40,994,691.90

Finding the Fourth Proportional to 138,024,008.70, 207,036,013.05 and 40,994,691.90

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Solution

The fourth proportional to 138,024,008.70, 207,036,013.05 and 40,994,691.90 is: 61,492,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,024,008.70 : 207,036,013.05 = 40,994,691.90 : x
  2. Step 2: Convert to fraction form
    138,024,008.70/207,036,013.05 = 40,994,691.90/x
  3. Step 3: Cross multiply
    138,024,008.70x = 207,036,013.05 × 40,994,691.90
  4. Step 4: Simplify right side
    138,024,008.70x = 8,487,377,567,189,129
  5. Step 5: Solve for x
    x = 8,487,377,567,189,129/138,024,008.70
  6. Step 6: Final answer
    x = 61,492,037.85

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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.