Home / 132,098,072.40-198,147,108.60-91,787,288.40

Finding the Fourth Proportional to 132,098,072.40, 198,147,108.60 and 91,787,288.40

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Solution

The fourth proportional to 132,098,072.40, 198,147,108.60 and 91,787,288.40 is: 137,680,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,098,072.40 : 198,147,108.60 = 91,787,288.40 : x
  2. Step 2: Convert to fraction form
    132,098,072.40/198,147,108.60 = 91,787,288.40/x
  3. Step 3: Cross multiply
    132,098,072.40x = 198,147,108.60 × 91,787,288.40
  4. Step 4: Simplify right side
    132,098,072.40x = 18,187,385,802,694,320
  5. Step 5: Solve for x
    x = 18,187,385,802,694,320/132,098,072.40
  6. Step 6: Final answer
    x = 137,680,932.60

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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.