Home / 21,395,642.82-32,108,787.41-9,108,220.90

Finding the Fourth Proportional to 21,395,642.82, 32,108,787.41 and 9,108,220.90

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Solution

The fourth proportional to 21,395,642.82, 32,108,787.41 and 9,108,220.90 is: 13,668,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395,642.82 : 32,108,787.41 = 9,108,220.90 : x
  2. Step 2: Convert to fraction form
    21,395,642.82/32,108,787.41 = 9,108,220.90/x
  3. Step 3: Cross multiply
    21,395,642.82x = 32,108,787.41 × 9,108,220.90
  4. Step 4: Simplify right side
    21,395,642.82x = 292,453,928,561,418.88
  5. Step 5: Solve for x
    x = 292,453,928,561,418.88/21,395,642.82
  6. Step 6: Final answer
    x = 13,668,854.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.