Home / 80,498,829.40-120,689,195.10-31,952,678.20

Finding the Fourth Proportional to 80,498,829.40, 120,689,195.10 and 31,952,678.20

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Solution

The fourth proportional to 80,498,829.40, 120,689,195.10 and 31,952,678.20 is: 47,905,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,498,829.40 : 120,689,195.10 = 31,952,678.20 : x
  2. Step 2: Convert to fraction form
    80,498,829.40/120,689,195.10 = 31,952,678.20/x
  3. Step 3: Cross multiply
    80,498,829.40x = 120,689,195.10 × 31,952,678.20
  4. Step 4: Simplify right side
    80,498,829.40x = 3,856,343,013,247,316.50
  5. Step 5: Solve for x
    x = 3,856,343,013,247,316.50/80,498,829.40
  6. Step 6: Final answer
    x = 47,905,578.78

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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.