Home / 21,542,930.08-29,728,205.40-11,752,791.78

Finding the Fourth Proportional to 21,542,930.08, 29,728,205.40 and 11,752,791.78

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Solution

The fourth proportional to 21,542,930.08, 29,728,205.40 and 11,752,791.78 is: 16,218,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542,930.08 : 29,728,205.40 = 11,752,791.78 : x
  2. Step 2: Convert to fraction form
    21,542,930.08/29,728,205.40 = 11,752,791.78/x
  3. Step 3: Cross multiply
    21,542,930.08x = 29,728,205.40 × 11,752,791.78
  4. Step 4: Simplify right side
    21,542,930.08x = 349,389,408,059,271.56
  5. Step 5: Solve for x
    x = 349,389,408,059,271.56/21,542,930.08
  6. Step 6: Final answer
    x = 16,218,286.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.