Home / 15,442,693.28-21,302,062.72-9,631,385.90

Finding the Fourth Proportional to 15,442,693.28, 21,302,062.72 and 9,631,385.90

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Solution

The fourth proportional to 15,442,693.28, 21,302,062.72 and 9,631,385.90 is: 13,285,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442,693.28 : 21,302,062.72 = 9,631,385.90 : x
  2. Step 2: Convert to fraction form
    15,442,693.28/21,302,062.72 = 9,631,385.90/x
  3. Step 3: Cross multiply
    15,442,693.28x = 21,302,062.72 × 9,631,385.90
  4. Step 4: Simplify right side
    15,442,693.28x = 205,168,386,522,323.66
  5. Step 5: Solve for x
    x = 205,168,386,522,323.66/15,442,693.28
  6. Step 6: Final answer
    x = 13,285,790.43

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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.