Home / 15,658,999.75-21,609,375.46-8,690,729.41

Finding the Fourth Proportional to 15,658,999.75, 21,609,375.46 and 8,690,729.41

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Solution

The fourth proportional to 15,658,999.75, 21,609,375.46 and 8,690,729.41 is: 11,993,182.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658,999.75 : 21,609,375.46 = 8,690,729.41 : x
  2. Step 2: Convert to fraction form
    15,658,999.75/21,609,375.46 = 8,690,729.41/x
  3. Step 3: Cross multiply
    15,658,999.75x = 21,609,375.46 × 8,690,729.41
  4. Step 4: Simplify right side
    15,658,999.75x = 187,801,234,841,954.28
  5. Step 5: Solve for x
    x = 187,801,234,841,954.28/15,658,999.75
  6. Step 6: Final answer
    x = 11,993,182.06

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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.