Home / 138,419,008.60-207,628,512.90-136,266,672.55

Finding the Fourth Proportional to 138,419,008.60, 207,628,512.90 and 136,266,672.55

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Solution

The fourth proportional to 138,419,008.60, 207,628,512.90 and 136,266,672.55 is: 204,400,008.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,419,008.60 : 207,628,512.90 = 136,266,672.55 : x
  2. Step 2: Convert to fraction form
    138,419,008.60/207,628,512.90 = 136,266,672.55/x
  3. Step 3: Cross multiply
    138,419,008.60x = 207,628,512.90 × 136,266,672.55
  4. Step 4: Simplify right side
    138,419,008.60x = 28,292,846,579,387,756
  5. Step 5: Solve for x
    x = 28,292,846,579,387,756/138,419,008.60
  6. Step 6: Final answer
    x = 204,400,008.83

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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.