Home / 72,508,724.10-100,063,315.94-39,469,922.87

Finding the Fourth Proportional to 72,508,724.10, 100,063,315.94 and 39,469,922.87

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Solution

The fourth proportional to 72,508,724.10, 100,063,315.94 and 39,469,922.87 is: 54,469,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,724.10 : 100,063,315.94 = 39,469,922.87 : x
  2. Step 2: Convert to fraction form
    72,508,724.10/100,063,315.94 = 39,469,922.87/x
  3. Step 3: Cross multiply
    72,508,724.10x = 100,063,315.94 × 39,469,922.87
  4. Step 4: Simplify right side
    72,508,724.10x = 3,949,491,361,570,575.50
  5. Step 5: Solve for x
    x = 3,949,491,361,570,575.50/72,508,724.10
  6. Step 6: Final answer
    x = 54,469,188.51

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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.