Home / 12,982,343.82-17,821,819.15-11,143,609.90

Finding the Fourth Proportional to 12,982,343.82, 17,821,819.15 and 11,143,609.90

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Solution

The fourth proportional to 12,982,343.82, 17,821,819.15 and 11,143,609.90 is: 15,297,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,343.82 : 17,821,819.15 = 11,143,609.90 : x
  2. Step 2: Convert to fraction form
    12,982,343.82/17,821,819.15 = 11,143,609.90/x
  3. Step 3: Cross multiply
    12,982,343.82x = 17,821,819.15 × 11,143,609.90
  4. Step 4: Simplify right side
    12,982,343.82x = 198,599,400,315,949.56
  5. Step 5: Solve for x
    x = 198,599,400,315,949.56/12,982,343.82
  6. Step 6: Final answer
    x = 15,297,653.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.