Home / 21,399,780.04-29,531,863.90-12,576,862.54

Finding the Fourth Proportional to 21,399,780.04, 29,531,863.90 and 12,576,862.54

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Solution

The fourth proportional to 21,399,780.04, 29,531,863.90 and 12,576,862.54 is: 17,356,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,780.04 : 29,531,863.90 = 12,576,862.54 : x
  2. Step 2: Convert to fraction form
    21,399,780.04/29,531,863.90 = 12,576,862.54/x
  3. Step 3: Cross multiply
    21,399,780.04x = 29,531,863.90 × 12,576,862.54
  4. Step 4: Simplify right side
    21,399,780.04x = 371,418,192,820,288.25
  5. Step 5: Solve for x
    x = 371,418,192,820,288.25/21,399,780.04
  6. Step 6: Final answer
    x = 17,356,168.71

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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.