Home / 21,709,988.23-29,960,761.04-13,007,974.02

Finding the Fourth Proportional to 21,709,988.23, 29,960,761.04 and 13,007,974.02

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Solution

The fourth proportional to 21,709,988.23, 29,960,761.04 and 13,007,974.02 is: 17,951,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709,988.23 : 29,960,761.04 = 13,007,974.02 : x
  2. Step 2: Convert to fraction form
    21,709,988.23/29,960,761.04 = 13,007,974.02/x
  3. Step 3: Cross multiply
    21,709,988.23x = 29,960,761.04 × 13,007,974.02
  4. Step 4: Simplify right side
    21,709,988.23x = 389,728,801,227,748.12
  5. Step 5: Solve for x
    x = 389,728,801,227,748.12/21,709,988.23
  6. Step 6: Final answer
    x = 17,951,589.71

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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.