Home / 132,192,040.20-198,288,060.30-80,459,867.40

Finding the Fourth Proportional to 132,192,040.20, 198,288,060.30 and 80,459,867.40

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Solution

The fourth proportional to 132,192,040.20, 198,288,060.30 and 80,459,867.40 is: 120,689,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,040.20 : 198,288,060.30 = 80,459,867.40 : x
  2. Step 2: Convert to fraction form
    132,192,040.20/198,288,060.30 = 80,459,867.40/x
  3. Step 3: Cross multiply
    132,192,040.20x = 198,288,060.30 × 80,459,867.40
  4. Step 4: Simplify right side
    132,192,040.20x = 15,954,231,038,741,206
  5. Step 5: Solve for x
    x = 15,954,231,038,741,206/132,192,040.20
  6. Step 6: Final answer
    x = 120,689,801.10

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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.