Home / 99,853,480.90-149,780,221.35-83,729,167.30

Finding the Fourth Proportional to 99,853,480.90, 149,780,221.35 and 83,729,167.30

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Solution

The fourth proportional to 99,853,480.90, 149,780,221.35 and 83,729,167.30 is: 125,593,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,480.90 : 149,780,221.35 = 83,729,167.30 : x
  2. Step 2: Convert to fraction form
    99,853,480.90/149,780,221.35 = 83,729,167.30/x
  3. Step 3: Cross multiply
    99,853,480.90x = 149,780,221.35 × 83,729,167.30
  4. Step 4: Simplify right side
    99,853,480.90x = 12,540,973,211,645,180
  5. Step 5: Solve for x
    x = 12,540,973,211,645,180/99,853,480.90
  6. Step 6: Final answer
    x = 125,593,750.95

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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.