Home / 28,658,268-39,547,843.92-15,605,687.52

Finding the Fourth Proportional to 28,658,268, 39,547,843.92 and 15,605,687.52

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Solution

The fourth proportional to 28,658,268, 39,547,843.92 and 15,605,687.52 is: 21,535,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658,268 : 39,547,843.92 = 15,605,687.52 : x
  2. Step 2: Convert to fraction form
    28,658,268/39,547,843.92 = 15,605,687.52/x
  3. Step 3: Cross multiply
    28,658,268x = 39,547,843.92 × 15,605,687.52
  4. Step 4: Simplify right side
    28,658,268x = 617,171,294,305,251.88
  5. Step 5: Solve for x
    x = 617,171,294,305,251.88/28,658,268
  6. Step 6: Final answer
    x = 21,535,540.61

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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.