Home / 15,483,791.72-21,336,121.56-11,977,833.92

Finding the Fourth Proportional to 15,483,791.72, 21,336,121.56 and 11,977,833.92

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Solution

The fourth proportional to 15,483,791.72, 21,336,121.56 and 11,977,833.92 is: 16,505,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483,791.72 : 21,336,121.56 = 11,977,833.92 : x
  2. Step 2: Convert to fraction form
    15,483,791.72/21,336,121.56 = 11,977,833.92/x
  3. Step 3: Cross multiply
    15,483,791.72x = 21,336,121.56 × 11,977,833.92
  4. Step 4: Simplify right side
    15,483,791.72x = 255,560,520,542,611.31
  5. Step 5: Solve for x
    x = 255,560,520,542,611.31/15,483,791.72
  6. Step 6: Final answer
    x = 16,505,034.76

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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.