Home / 137,246,589.82-205,876,505.87-45,128,288.44

Finding the Fourth Proportional to 137,246,589.82, 205,876,505.87 and 45,128,288.44

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Solution

The fourth proportional to 137,246,589.82, 205,876,505.87 and 45,128,288.44 is: 67,694,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246,589.82 : 205,876,505.87 = 45,128,288.44 : x
  2. Step 2: Convert to fraction form
    137,246,589.82/205,876,505.87 = 45,128,288.44/x
  3. Step 3: Cross multiply
    137,246,589.82x = 205,876,505.87 × 45,128,288.44
  4. Step 4: Simplify right side
    137,246,589.82x = 9,290,854,339,920,712
  5. Step 5: Solve for x
    x = 9,290,854,339,920,712/137,246,589.82
  6. Step 6: Final answer
    x = 67,694,609.77

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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.