Home / 15,419,905.50-21,279,936.15-8,543,744.22

Finding the Fourth Proportional to 15,419,905.50, 21,279,936.15 and 8,543,744.22

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Solution

The fourth proportional to 15,419,905.50, 21,279,936.15 and 8,543,744.22 is: 11,790,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,905.50 : 21,279,936.15 = 8,543,744.22 : x
  2. Step 2: Convert to fraction form
    15,419,905.50/21,279,936.15 = 8,543,744.22/x
  3. Step 3: Cross multiply
    15,419,905.50x = 21,279,936.15 × 8,543,744.22
  4. Step 4: Simplify right side
    15,419,905.50x = 181,810,331,483,531.56
  5. Step 5: Solve for x
    x = 181,810,331,483,531.56/15,419,905.50
  6. Step 6: Final answer
    x = 11,790,625.53

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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.