Home / 18,917,171.60-26,078,375.05-13,475,215.76

Finding the Fourth Proportional to 18,917,171.60, 26,078,375.05 and 13,475,215.76

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Solution

The fourth proportional to 18,917,171.60, 26,078,375.05 and 13,475,215.76 is: 18,576,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917,171.60 : 26,078,375.05 = 13,475,215.76 : x
  2. Step 2: Convert to fraction form
    18,917,171.60/26,078,375.05 = 13,475,215.76/x
  3. Step 3: Cross multiply
    18,917,171.60x = 26,078,375.05 × 13,475,215.76
  4. Step 4: Simplify right side
    18,917,171.60x = 351,411,730,304,870.88
  5. Step 5: Solve for x
    x = 351,411,730,304,870.88/18,917,171.60
  6. Step 6: Final answer
    x = 18,576,335.71

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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.