Home / 3,900,098.60-5,382,408.66-2,181,377.96

Finding the Fourth Proportional to 3,900,098.60, 5,382,408.66 and 2,181,377.96

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Solution

The fourth proportional to 3,900,098.60, 5,382,408.66 and 2,181,377.96 is: 3,010,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,098.60 : 5,382,408.66 = 2,181,377.96 : x
  2. Step 2: Convert to fraction form
    3,900,098.60/5,382,408.66 = 2,181,377.96/x
  3. Step 3: Cross multiply
    3,900,098.60x = 5,382,408.66 × 2,181,377.96
  4. Step 4: Simplify right side
    3,900,098.60x = 11,741,067,622,637.13
  5. Step 5: Solve for x
    x = 11,741,067,622,637.13/3,900,098.60
  6. Step 6: Final answer
    x = 3,010,454.05

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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.