Home / 21,107,372.45-29,128,667.18-11,814,711.44

Finding the Fourth Proportional to 21,107,372.45, 29,128,667.18 and 11,814,711.44

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Solution

The fourth proportional to 21,107,372.45, 29,128,667.18 and 11,814,711.44 is: 16,304,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,372.45 : 29,128,667.18 = 11,814,711.44 : x
  2. Step 2: Convert to fraction form
    21,107,372.45/29,128,667.18 = 11,814,711.44/x
  3. Step 3: Cross multiply
    21,107,372.45x = 29,128,667.18 × 11,814,711.44
  4. Step 4: Simplify right side
    21,107,372.45x = 344,146,797,158,781.69
  5. Step 5: Solve for x
    x = 344,146,797,158,781.69/21,107,372.45
  6. Step 6: Final answer
    x = 16,304,577.85

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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.