Home / 12,982,396.34-17,821,890.89-11,143,662.42

Finding the Fourth Proportional to 12,982,396.34, 17,821,890.89 and 11,143,662.42

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Solution

The fourth proportional to 12,982,396.34, 17,821,890.89 and 11,143,662.42 is: 15,297,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,396.34 : 17,821,890.89 = 11,143,662.42 : x
  2. Step 2: Convert to fraction form
    12,982,396.34/17,821,890.89 = 11,143,662.42/x
  3. Step 3: Cross multiply
    12,982,396.34x = 17,821,890.89 × 11,143,662.42
  4. Step 4: Simplify right side
    12,982,396.34x = 198,601,135,879,818.97
  5. Step 5: Solve for x
    x = 198,601,135,879,818.97/12,982,396.34
  6. Step 6: Final answer
    x = 15,297,725.52

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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.