Home / 72,006,229.71-99,368,593.94-38,966,479.86

Finding the Fourth Proportional to 72,006,229.71, 99,368,593.94 and 38,966,479.86

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Solution

The fourth proportional to 72,006,229.71, 99,368,593.94 and 38,966,479.86 is: 53,773,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,229.71 : 99,368,593.94 = 38,966,479.86 : x
  2. Step 2: Convert to fraction form
    72,006,229.71/99,368,593.94 = 38,966,479.86/x
  3. Step 3: Cross multiply
    72,006,229.71x = 99,368,593.94 × 38,966,479.86
  4. Step 4: Simplify right side
    72,006,229.71x = 3,872,044,314,284,695.50
  5. Step 5: Solve for x
    x = 3,872,044,314,284,695.50/72,006,229.71
  6. Step 6: Final answer
    x = 53,773,740.55

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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.