Home / 91,799,721.13-126,685,886.90-49,986,078.73

Finding the Fourth Proportional to 91,799,721.13, 126,685,886.90 and 49,986,078.73

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Solution

The fourth proportional to 91,799,721.13, 126,685,886.90 and 49,986,078.73 is: 68,982,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,799,721.13 : 126,685,886.90 = 49,986,078.73 : x
  2. Step 2: Convert to fraction form
    91,799,721.13/126,685,886.90 = 49,986,078.73/x
  3. Step 3: Cross multiply
    91,799,721.13x = 126,685,886.90 × 49,986,078.73
  4. Step 4: Simplify right side
    91,799,721.13x = 6,332,530,715,867,364
  5. Step 5: Solve for x
    x = 6,332,530,715,867,364/91,799,721.13
  6. Step 6: Final answer
    x = 68,982,025.63

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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.