Home / 120,622,691.70-180,934,037.55-100,534,221.90

Finding the Fourth Proportional to 120,622,691.70, 180,934,037.55 and 100,534,221.90

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Solution

The fourth proportional to 120,622,691.70, 180,934,037.55 and 100,534,221.90 is: 150,801,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622,691.70 : 180,934,037.55 = 100,534,221.90 : x
  2. Step 2: Convert to fraction form
    120,622,691.70/180,934,037.55 = 100,534,221.90/x
  3. Step 3: Cross multiply
    120,622,691.70x = 180,934,037.55 × 100,534,221.90
  4. Step 4: Simplify right side
    120,622,691.70x = 18,190,062,680,314,636
  5. Step 5: Solve for x
    x = 18,190,062,680,314,636/120,622,691.70
  6. Step 6: Final answer
    x = 150,801,332.85

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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.