Home / 90,773,149.72-135,451,735.26-80,990,523.76

Finding the Fourth Proportional to 90,773,149.72, 135,451,735.26 and 80,990,523.76

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Solution

The fourth proportional to 90,773,149.72, 135,451,735.26 and 80,990,523.76 is: 120,854,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,773,149.72 : 135,451,735.26 = 80,990,523.76 : x
  2. Step 2: Convert to fraction form
    90,773,149.72/135,451,735.26 = 80,990,523.76/x
  3. Step 3: Cross multiply
    90,773,149.72x = 135,451,735.26 × 80,990,523.76
  4. Step 4: Simplify right side
    90,773,149.72x = 10,970,306,982,908,260
  5. Step 5: Solve for x
    x = 10,970,306,982,908,260/90,773,149.72
  6. Step 6: Final answer
    x = 120,854,096.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.