Home / 137,246,694.32-205,876,662.72-45,128,393.04

Finding the Fourth Proportional to 137,246,694.32, 205,876,662.72 and 45,128,393.04

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Solution

The fourth proportional to 137,246,694.32, 205,876,662.72 and 45,128,393.04 is: 67,694,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246,694.32 : 205,876,662.72 = 45,128,393.04 : x
  2. Step 2: Convert to fraction form
    137,246,694.32/205,876,662.72 = 45,128,393.04/x
  3. Step 3: Cross multiply
    137,246,694.32x = 205,876,662.72 × 45,128,393.04
  4. Step 4: Simplify right side
    137,246,694.32x = 9,290,882,952,991,676
  5. Step 5: Solve for x
    x = 9,290,882,952,991,676/137,246,694.32
  6. Step 6: Final answer
    x = 67,694,766.70

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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.