Home / 129,946,750.92-179,326,545.30-77,737,961.16

Finding the Fourth Proportional to 129,946,750.92, 179,326,545.30 and 77,737,961.16

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Solution

The fourth proportional to 129,946,750.92, 179,326,545.30 and 77,737,961.16 is: 107,278,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,946,750.92 : 179,326,545.30 = 77,737,961.16 : x
  2. Step 2: Convert to fraction form
    129,946,750.92/179,326,545.30 = 77,737,961.16/x
  3. Step 3: Cross multiply
    129,946,750.92x = 179,326,545.30 × 77,737,961.16
  4. Step 4: Simplify right side
    129,946,750.92x = 13,940,480,013,488,380
  5. Step 5: Solve for x
    x = 13,940,480,013,488,380/129,946,750.92
  6. Step 6: Final answer
    x = 107,278,403.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.