Home / 12,936,982.78-17,858,909.19-9,218,214.46

Finding the Fourth Proportional to 12,936,982.78, 17,858,909.19 and 9,218,214.46

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Solution

The fourth proportional to 12,936,982.78, 17,858,909.19 and 9,218,214.46 is: 12,725,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936,982.78 : 17,858,909.19 = 9,218,214.46 : x
  2. Step 2: Convert to fraction form
    12,936,982.78/17,858,909.19 = 9,218,214.46/x
  3. Step 3: Cross multiply
    12,936,982.78x = 17,858,909.19 × 9,218,214.46
  4. Step 4: Simplify right side
    12,936,982.78x = 164,627,254,935,084.91
  5. Step 5: Solve for x
    x = 164,627,254,935,084.91/12,936,982.78
  6. Step 6: Final answer
    x = 12,725,320.71

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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.