Home / 15,216,115.96-20,985,996.21-13,376,641.20

Finding the Fourth Proportional to 15,216,115.96, 20,985,996.21 and 13,376,641.20

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Solution

The fourth proportional to 15,216,115.96, 20,985,996.21 and 13,376,641.20 is: 18,449,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,115.96 : 20,985,996.21 = 13,376,641.20 : x
  2. Step 2: Convert to fraction form
    15,216,115.96/20,985,996.21 = 13,376,641.20/x
  3. Step 3: Cross multiply
    15,216,115.96x = 20,985,996.21 × 13,376,641.20
  4. Step 4: Simplify right side
    15,216,115.96x = 280,722,141,353,916.66
  5. Step 5: Solve for x
    x = 280,722,141,353,916.66/15,216,115.96
  6. Step 6: Final answer
    x = 18,449,001.18

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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.