Home / 78,761,349.95-108,692,402.83-43,479,071.49

Finding the Fourth Proportional to 78,761,349.95, 108,692,402.83 and 43,479,071.49

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Solution

The fourth proportional to 78,761,349.95, 108,692,402.83 and 43,479,071.49 is: 60,002,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,761,349.95 : 108,692,402.83 = 43,479,071.49 : x
  2. Step 2: Convert to fraction form
    78,761,349.95/108,692,402.83 = 43,479,071.49/x
  3. Step 3: Cross multiply
    78,761,349.95x = 108,692,402.83 × 43,479,071.49
  4. Step 4: Simplify right side
    78,761,349.95x = 4,725,844,752,521,986
  5. Step 5: Solve for x
    x = 4,725,844,752,521,986/78,761,349.95
  6. Step 6: Final answer
    x = 60,002,079.14

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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.