Home / 21,603,573.71-29,815,242.11-13,236,496.22

Finding the Fourth Proportional to 21,603,573.71, 29,815,242.11 and 13,236,496.22

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Solution

The fourth proportional to 21,603,573.71, 29,815,242.11 and 13,236,496.22 is: 18,267,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603,573.71 : 29,815,242.11 = 13,236,496.22 : x
  2. Step 2: Convert to fraction form
    21,603,573.71/29,815,242.11 = 13,236,496.22/x
  3. Step 3: Cross multiply
    21,603,573.71x = 29,815,242.11 × 13,236,496.22
  4. Step 4: Simplify right side
    21,603,573.71x = 394,649,339,383,948.31
  5. Step 5: Solve for x
    x = 394,649,339,383,948.31/21,603,573.71
  6. Step 6: Final answer
    x = 18,267,780.35

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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.