Home / 21,658,789.66-29,888,273.29-12,951,774.04

Finding the Fourth Proportional to 21,658,789.66, 29,888,273.29 and 12,951,774.04

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Solution

The fourth proportional to 21,658,789.66, 29,888,273.29 and 12,951,774.04 is: 17,872,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658,789.66 : 29,888,273.29 = 12,951,774.04 : x
  2. Step 2: Convert to fraction form
    21,658,789.66/29,888,273.29 = 12,951,774.04/x
  3. Step 3: Cross multiply
    21,658,789.66x = 29,888,273.29 × 12,951,774.04
  4. Step 4: Simplify right side
    21,658,789.66x = 387,106,161,948,406
  5. Step 5: Solve for x
    x = 387,106,161,948,406/21,658,789.66
  6. Step 6: Final answer
    x = 17,872,936.03

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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.