Home / 21,538,131-32,307,477.92-7,161,198.81

Finding the Fourth Proportional to 21,538,131, 32,307,477.92 and 7,161,198.81

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Solution

The fourth proportional to 21,538,131, 32,307,477.92 and 7,161,198.81 is: 10,741,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,131 : 32,307,477.92 = 7,161,198.81 : x
  2. Step 2: Convert to fraction form
    21,538,131/32,307,477.92 = 7,161,198.81/x
  3. Step 3: Cross multiply
    21,538,131x = 32,307,477.92 × 7,161,198.81
  4. Step 4: Simplify right side
    21,538,131x = 231,360,272,398,999.25
  5. Step 5: Solve for x
    x = 231,360,272,398,999.25/21,538,131
  6. Step 6: Final answer
    x = 10,741,891.78

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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.