Home / 5,181,286.29-7,149,851.43-2,858,205.68

Finding the Fourth Proportional to 5,181,286.29, 7,149,851.43 and 2,858,205.68

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Solution

The fourth proportional to 5,181,286.29, 7,149,851.43 and 2,858,205.68 is: 3,944,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,286.29 : 7,149,851.43 = 2,858,205.68 : x
  2. Step 2: Convert to fraction form
    5,181,286.29/7,149,851.43 = 2,858,205.68/x
  3. Step 3: Cross multiply
    5,181,286.29x = 7,149,851.43 × 2,858,205.68
  4. Step 4: Simplify right side
    5,181,286.29x = 20,435,745,968,382.12
  5. Step 5: Solve for x
    x = 20,435,745,968,382.12/5,181,286.29
  6. Step 6: Final answer
    x = 3,944,145.30

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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.