Home / 78,761,251.80-117,952,920.90-38,324,496.60

Finding the Fourth Proportional to 78,761,251.80, 117,952,920.90 and 38,324,496.60

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Solution

The fourth proportional to 78,761,251.80, 117,952,920.90 and 38,324,496.60 is: 57,394,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,761,251.80 : 117,952,920.90 = 38,324,496.60 : x
  2. Step 2: Convert to fraction form
    78,761,251.80/117,952,920.90 = 38,324,496.60/x
  3. Step 3: Cross multiply
    78,761,251.80x = 117,952,920.90 × 38,324,496.60
  4. Step 4: Simplify right side
    78,761,251.80x = 4,520,486,315,992,119
  5. Step 5: Solve for x
    x = 4,520,486,315,992,119/78,761,251.80
  6. Step 6: Final answer
    x = 57,394,800.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.