Home / 129,792,373.92-179,234,886.78-83,463,121.44

Finding the Fourth Proportional to 129,792,373.92, 179,234,886.78 and 83,463,121.44

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Solution

The fourth proportional to 129,792,373.92, 179,234,886.78 and 83,463,121.44 is: 115,257,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,792,373.92 : 179,234,886.78 = 83,463,121.44 : x
  2. Step 2: Convert to fraction form
    129,792,373.92/179,234,886.78 = 83,463,121.44/x
  3. Step 3: Cross multiply
    129,792,373.92x = 179,234,886.78 × 83,463,121.44
  4. Step 4: Simplify right side
    129,792,373.92x = 14,959,503,121,603,790
  5. Step 5: Solve for x
    x = 14,959,503,121,603,790/129,792,373.92
  6. Step 6: Final answer
    x = 115,257,180.91

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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.