Home / 21,687,138.03-29,926,344.40-12,392,863.71

Finding the Fourth Proportional to 21,687,138.03, 29,926,344.40 and 12,392,863.71

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Solution

The fourth proportional to 21,687,138.03, 29,926,344.40 and 12,392,863.71 is: 17,101,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,138.03 : 29,926,344.40 = 12,392,863.71 : x
  2. Step 2: Convert to fraction form
    21,687,138.03/29,926,344.40 = 12,392,863.71/x
  3. Step 3: Cross multiply
    21,687,138.03x = 29,926,344.40 × 12,392,863.71
  4. Step 4: Simplify right side
    21,687,138.03x = 370,873,107,487,721.75
  5. Step 5: Solve for x
    x = 370,873,107,487,721.75/21,687,138.03
  6. Step 6: Final answer
    x = 17,101,062.71

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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.