Home / 28,510,046.25-42,777,781.31-13,149,072.20

Finding the Fourth Proportional to 28,510,046.25, 42,777,781.31 and 13,149,072.20

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Solution

The fourth proportional to 28,510,046.25, 42,777,781.31 and 13,149,072.20 is: 19,729,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510,046.25 : 42,777,781.31 = 13,149,072.20 : x
  2. Step 2: Convert to fraction form
    28,510,046.25/42,777,781.31 = 13,149,072.20/x
  3. Step 3: Cross multiply
    28,510,046.25x = 42,777,781.31 × 13,149,072.20
  4. Step 4: Simplify right side
    28,510,046.25x = 562,488,134,721,366.31
  5. Step 5: Solve for x
    x = 562,488,134,721,366.31/28,510,046.25
  6. Step 6: Final answer
    x = 19,729,471.14

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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.