Home / 31,245,343.52-43,109,246.94-20,214,625.82

Finding the Fourth Proportional to 31,245,343.52, 43,109,246.94 and 20,214,625.82

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Solution

The fourth proportional to 31,245,343.52, 43,109,246.94 and 20,214,625.82 is: 27,890,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,245,343.52 : 43,109,246.94 = 20,214,625.82 : x
  2. Step 2: Convert to fraction form
    31,245,343.52/43,109,246.94 = 20,214,625.82/x
  3. Step 3: Cross multiply
    31,245,343.52x = 43,109,246.94 × 20,214,625.82
  4. Step 4: Simplify right side
    31,245,343.52x = 871,437,296,274,080
  5. Step 5: Solve for x
    x = 871,437,296,274,080/31,245,343.52
  6. Step 6: Final answer
    x = 27,890,149.32

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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.