Home / 103,324,419.78-142,587,707.03-56,914,673.68

Finding the Fourth Proportional to 103,324,419.78, 142,587,707.03 and 56,914,673.68

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Solution

The fourth proportional to 103,324,419.78, 142,587,707.03 and 56,914,673.68 is: 78,542,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,324,419.78 : 142,587,707.03 = 56,914,673.68 : x
  2. Step 2: Convert to fraction form
    103,324,419.78/142,587,707.03 = 56,914,673.68/x
  3. Step 3: Cross multiply
    103,324,419.78x = 142,587,707.03 × 56,914,673.68
  4. Step 4: Simplify right side
    103,324,419.78x = 8,115,332,816,391,892
  5. Step 5: Solve for x
    x = 8,115,332,816,391,892/103,324,419.78
  6. Step 6: Final answer
    x = 78,542,253.94

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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.