Home / 3,900,400.52-5,382,827.88-2,181,680.96

Finding the Fourth Proportional to 3,900,400.52, 5,382,827.88 and 2,181,680.96

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Solution

The fourth proportional to 3,900,400.52, 5,382,827.88 and 2,181,680.96 is: 3,010,873.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,400.52 : 5,382,827.88 = 2,181,680.96 : x
  2. Step 2: Convert to fraction form
    3,900,400.52/5,382,827.88 = 2,181,680.96/x
  3. Step 3: Cross multiply
    3,900,400.52x = 5,382,827.88 × 2,181,680.96
  4. Step 4: Simplify right side
    3,900,400.52x = 11,743,613,096,753.16
  5. Step 5: Solve for x
    x = 11,743,613,096,753.16/3,900,400.52
  6. Step 6: Final answer
    x = 3,010,873.64

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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.