Home / 31,819,046.21-47,761,966.07-28,198,936.55

Finding the Fourth Proportional to 31,819,046.21, 47,761,966.07 and 28,198,936.55

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Solution

The fourth proportional to 31,819,046.21, 47,761,966.07 and 28,198,936.55 is: 42,328,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819,046.21 : 47,761,966.07 = 28,198,936.55 : x
  2. Step 2: Convert to fraction form
    31,819,046.21/47,761,966.07 = 28,198,936.55/x
  3. Step 3: Cross multiply
    31,819,046.21x = 47,761,966.07 × 28,198,936.55
  4. Step 4: Simplify right side
    31,819,046.21x = 1,346,836,650,901,085
  5. Step 5: Solve for x
    x = 1,346,836,650,901,085/31,819,046.21
  6. Step 6: Final answer
    x = 42,328,001.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.