Home / 12,882,822.71-17,786,856.20-9,897,208.61

Finding the Fourth Proportional to 12,882,822.71, 17,786,856.20 and 9,897,208.61

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Solution

The fourth proportional to 12,882,822.71, 17,786,856.20 and 9,897,208.61 is: 13,664,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882,822.71 : 17,786,856.20 = 9,897,208.61 : x
  2. Step 2: Convert to fraction form
    12,882,822.71/17,786,856.20 = 9,897,208.61/x
  3. Step 3: Cross multiply
    12,882,822.71x = 17,786,856.20 × 9,897,208.61
  4. Step 4: Simplify right side
    12,882,822.71x = 176,040,226,322,453
  5. Step 5: Solve for x
    x = 176,040,226,322,453/12,882,822.71
  6. Step 6: Final answer
    x = 13,664,724.75

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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.