Home / 132,013,081.10-198,019,621.65-77,451,805.10

Finding the Fourth Proportional to 132,013,081.10, 198,019,621.65 and 77,451,805.10

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Solution

The fourth proportional to 132,013,081.10, 198,019,621.65 and 77,451,805.10 is: 116,177,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,013,081.10 : 198,019,621.65 = 77,451,805.10 : x
  2. Step 2: Convert to fraction form
    132,013,081.10/198,019,621.65 = 77,451,805.10/x
  3. Step 3: Cross multiply
    132,013,081.10x = 198,019,621.65 × 77,451,805.10
  4. Step 4: Simplify right side
    132,013,081.10x = 15,336,977,142,011,540
  5. Step 5: Solve for x
    x = 15,336,977,142,011,540/132,013,081.10
  6. Step 6: Final answer
    x = 116,177,707.65

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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.