Home / 129,131,295.75-178,264,808.57-89,468,902.58

Finding the Fourth Proportional to 129,131,295.75, 178,264,808.57 and 89,468,902.58

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Solution

The fourth proportional to 129,131,295.75, 178,264,808.57 and 89,468,902.58 is: 123,511,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,131,295.75 : 178,264,808.57 = 89,468,902.58 : x
  2. Step 2: Convert to fraction form
    129,131,295.75/178,264,808.57 = 89,468,902.58/x
  3. Step 3: Cross multiply
    129,131,295.75x = 178,264,808.57 × 89,468,902.58
  4. Step 4: Simplify right side
    129,131,295.75x = 15,949,156,790,724,028
  5. Step 5: Solve for x
    x = 15,949,156,790,724,028/129,131,295.75
  6. Step 6: Final answer
    x = 123,511,165.11

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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.