Home / 21,864,422.28-30,172,386.42-12,074,671.56

Finding the Fourth Proportional to 21,864,422.28, 30,172,386.42 and 12,074,671.56

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Solution

The fourth proportional to 21,864,422.28, 30,172,386.42 and 12,074,671.56 is: 16,662,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864,422.28 : 30,172,386.42 = 12,074,671.56 : x
  2. Step 2: Convert to fraction form
    21,864,422.28/30,172,386.42 = 12,074,671.56/x
  3. Step 3: Cross multiply
    21,864,422.28x = 30,172,386.42 × 12,074,671.56
  4. Step 4: Simplify right side
    21,864,422.28x = 364,321,656,202,904.25
  5. Step 5: Solve for x
    x = 364,321,656,202,904.25/21,864,422.28
  6. Step 6: Final answer
    x = 16,662,761.61

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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.