Home / 120,137,204.28-165,815,273.40-73,109,429.82

Finding the Fourth Proportional to 120,137,204.28, 165,815,273.40 and 73,109,429.82

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Solution

The fourth proportional to 120,137,204.28, 165,815,273.40 and 73,109,429.82 is: 100,906,793.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,137,204.28 : 165,815,273.40 = 73,109,429.82 : x
  2. Step 2: Convert to fraction form
    120,137,204.28/165,815,273.40 = 73,109,429.82/x
  3. Step 3: Cross multiply
    120,137,204.28x = 165,815,273.40 × 73,109,429.82
  4. Step 4: Simplify right side
    120,137,204.28x = 12,122,660,093,721,412
  5. Step 5: Solve for x
    x = 12,122,660,093,721,412/120,137,204.28
  6. Step 6: Final answer
    x = 100,906,793.75

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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.