Home / 39,251,217.20-54,166,682.21-21,847,188.78

Finding the Fourth Proportional to 39,251,217.20, 54,166,682.21 and 21,847,188.78

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Solution

The fourth proportional to 39,251,217.20, 54,166,682.21 and 21,847,188.78 is: 30,149,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,251,217.20 : 54,166,682.21 = 21,847,188.78 : x
  2. Step 2: Convert to fraction form
    39,251,217.20/54,166,682.21 = 21,847,188.78/x
  3. Step 3: Cross multiply
    39,251,217.20x = 54,166,682.21 × 21,847,188.78
  4. Step 4: Simplify right side
    39,251,217.20x = 1,183,389,731,718,901.75
  5. Step 5: Solve for x
    x = 1,183,389,731,718,901.75/39,251,217.20
  6. Step 6: Final answer
    x = 30,149,121.89

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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.