Home / 69,869,721.15-96,420,610.47-40,518,480.76

Finding the Fourth Proportional to 69,869,721.15, 96,420,610.47 and 40,518,480.76

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Solution

The fourth proportional to 69,869,721.15, 96,420,610.47 and 40,518,480.76 is: 55,915,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,869,721.15 : 96,420,610.47 = 40,518,480.76 : x
  2. Step 2: Convert to fraction form
    69,869,721.15/96,420,610.47 = 40,518,480.76/x
  3. Step 3: Cross multiply
    69,869,721.15x = 96,420,610.47 × 40,518,480.76
  4. Step 4: Simplify right side
    69,869,721.15x = 3,906,816,650,316,675
  5. Step 5: Solve for x
    x = 3,906,816,650,316,675/69,869,721.15
  6. Step 6: Final answer
    x = 55,915,732.68

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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.