Home / 20,680,343.70-31,020,515.55-13,027,593.30

Finding the Fourth Proportional to 20,680,343.70, 31,020,515.55 and 13,027,593.30

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Solution

The fourth proportional to 20,680,343.70, 31,020,515.55 and 13,027,593.30 is: 19,541,389.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,343.70 : 31,020,515.55 = 13,027,593.30 : x
  2. Step 2: Convert to fraction form
    20,680,343.70/31,020,515.55 = 13,027,593.30/x
  3. Step 3: Cross multiply
    20,680,343.70x = 31,020,515.55 × 13,027,593.30
  4. Step 4: Simplify right side
    20,680,343.70x = 404,122,660,541,725.88
  5. Step 5: Solve for x
    x = 404,122,660,541,725.88/20,680,343.70
  6. Step 6: Final answer
    x = 19,541,389.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.