Home / 89,678,118.40-134,517,177.60-81,741,932.80

Finding the Fourth Proportional to 89,678,118.40, 134,517,177.60 and 81,741,932.80

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Solution

The fourth proportional to 89,678,118.40, 134,517,177.60 and 81,741,932.80 is: 122,612,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,678,118.40 : 134,517,177.60 = 81,741,932.80 : x
  2. Step 2: Convert to fraction form
    89,678,118.40/134,517,177.60 = 81,741,932.80/x
  3. Step 3: Cross multiply
    89,678,118.40x = 134,517,177.60 × 81,741,932.80
  4. Step 4: Simplify right side
    89,678,118.40x = 10,995,694,091,824,864
  5. Step 5: Solve for x
    x = 10,995,694,091,824,864/89,678,118.40
  6. Step 6: Final answer
    x = 122,612,899.20

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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.