Home / 13,182,791.76-18,192,772.26-7,381,521.54

Finding the Fourth Proportional to 13,182,791.76, 18,192,772.26 and 7,381,521.54

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Solution

The fourth proportional to 13,182,791.76, 18,192,772.26 and 7,381,521.54 is: 10,186,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,791.76 : 18,192,772.26 = 7,381,521.54 : x
  2. Step 2: Convert to fraction form
    13,182,791.76/18,192,772.26 = 7,381,521.54/x
  3. Step 3: Cross multiply
    13,182,791.76x = 18,192,772.26 × 7,381,521.54
  4. Step 4: Simplify right side
    13,182,791.76x = 134,290,340,309,504.50
  5. Step 5: Solve for x
    x = 134,290,340,309,504.50/13,182,791.76
  6. Step 6: Final answer
    x = 10,186,790.69

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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.