Home / 21,538,132.38-32,307,479.97-7,161,200.19

Finding the Fourth Proportional to 21,538,132.38, 32,307,479.97 and 7,161,200.19

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Solution

The fourth proportional to 21,538,132.38, 32,307,479.97 and 7,161,200.19 is: 10,741,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,132.38 : 32,307,479.97 = 7,161,200.19 : x
  2. Step 2: Convert to fraction form
    21,538,132.38/32,307,479.97 = 7,161,200.19/x
  3. Step 3: Cross multiply
    21,538,132.38x = 32,307,479.97 × 7,161,200.19
  4. Step 4: Simplify right side
    21,538,132.38x = 231,360,331,699,585.19
  5. Step 5: Solve for x
    x = 231,360,331,699,585.19/21,538,132.38
  6. Step 6: Final answer
    x = 10,741,893.85

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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.