Home / 72,508,727.10-100,063,320.09-39,469,925.88

Finding the Fourth Proportional to 72,508,727.10, 100,063,320.09 and 39,469,925.88

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Solution

The fourth proportional to 72,508,727.10, 100,063,320.09 and 39,469,925.88 is: 54,469,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,727.10 : 100,063,320.09 = 39,469,925.88 : x
  2. Step 2: Convert to fraction form
    72,508,727.10/100,063,320.09 = 39,469,925.88/x
  3. Step 3: Cross multiply
    72,508,727.10x = 100,063,320.09 × 39,469,925.88
  4. Step 4: Simplify right side
    72,508,727.10x = 3,949,491,827,259,015.50
  5. Step 5: Solve for x
    x = 3,949,491,827,259,015.50/72,508,727.10
  6. Step 6: Final answer
    x = 54,469,192.68

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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.