Home / 12,982,342.82-17,821,817.78-11,143,608.90

Finding the Fourth Proportional to 12,982,342.82, 17,821,817.78 and 11,143,608.90

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Solution

The fourth proportional to 12,982,342.82, 17,821,817.78 and 11,143,608.90 is: 15,297,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,342.82 : 17,821,817.78 = 11,143,608.90 : x
  2. Step 2: Convert to fraction form
    12,982,342.82/17,821,817.78 = 11,143,608.90/x
  3. Step 3: Cross multiply
    12,982,342.82x = 17,821,817.78 × 11,143,608.90
  4. Step 4: Simplify right side
    12,982,342.82x = 198,599,367,171,668.19
  5. Step 5: Solve for x
    x = 198,599,367,171,668.19/12,982,342.82
  6. Step 6: Final answer
    x = 15,297,652.35

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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.