Home / 99,853,481.40-149,780,222.10-83,729,167.80

Finding the Fourth Proportional to 99,853,481.40, 149,780,222.10 and 83,729,167.80

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Solution

The fourth proportional to 99,853,481.40, 149,780,222.10 and 83,729,167.80 is: 125,593,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,481.40 : 149,780,222.10 = 83,729,167.80 : x
  2. Step 2: Convert to fraction form
    99,853,481.40/149,780,222.10 = 83,729,167.80/x
  3. Step 3: Cross multiply
    99,853,481.40x = 149,780,222.10 × 83,729,167.80
  4. Step 4: Simplify right side
    99,853,481.40x = 12,540,973,349,332,168
  5. Step 5: Solve for x
    x = 12,540,973,349,332,168/99,853,481.40
  6. Step 6: Final answer
    x = 125,593,751.70

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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.