Home / 12,982,398.41-17,821,893.72-11,143,664.49

Finding the Fourth Proportional to 12,982,398.41, 17,821,893.72 and 11,143,664.49

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Solution

The fourth proportional to 12,982,398.41, 17,821,893.72 and 11,143,664.49 is: 15,297,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,398.41 : 17,821,893.72 = 11,143,664.49 : x
  2. Step 2: Convert to fraction form
    12,982,398.41/17,821,893.72 = 11,143,664.49/x
  3. Step 3: Cross multiply
    12,982,398.41x = 17,821,893.72 × 11,143,664.49
  4. Step 4: Simplify right side
    12,982,398.41x = 198,601,204,192,118
  5. Step 5: Solve for x
    x = 198,601,204,192,118/12,982,398.41
  6. Step 6: Final answer
    x = 15,297,728.35

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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.