Home / 12,278,986.46-18,380,163.01-9,044,176.72

Finding the Fourth Proportional to 12,278,986.46, 18,380,163.01 and 9,044,176.72

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Solution

The fourth proportional to 12,278,986.46, 18,380,163.01 and 9,044,176.72 is: 13,538,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,986.46 : 18,380,163.01 = 9,044,176.72 : x
  2. Step 2: Convert to fraction form
    12,278,986.46/18,380,163.01 = 9,044,176.72/x
  3. Step 3: Cross multiply
    12,278,986.46x = 18,380,163.01 × 9,044,176.72
  4. Step 4: Simplify right side
    12,278,986.46x = 166,233,442,344,244.72
  5. Step 5: Solve for x
    x = 166,233,442,344,244.72/12,278,986.46
  6. Step 6: Final answer
    x = 13,538,042.64

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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.