Home / 15,418,517.54-21,287,229.30-9,921,445.52

Finding the Fourth Proportional to 15,418,517.54, 21,287,229.30 and 9,921,445.52

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Solution

The fourth proportional to 15,418,517.54, 21,287,229.30 and 9,921,445.52 is: 13,697,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418,517.54 : 21,287,229.30 = 9,921,445.52 : x
  2. Step 2: Convert to fraction form
    15,418,517.54/21,287,229.30 = 9,921,445.52/x
  3. Step 3: Cross multiply
    15,418,517.54x = 21,287,229.30 × 9,921,445.52
  4. Step 4: Simplify right side
    15,418,517.54x = 211,200,085,665,261.62
  5. Step 5: Solve for x
    x = 211,200,085,665,261.62/15,418,517.54
  6. Step 6: Final answer
    x = 13,697,820.51

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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.