Home / 100,469,098.44-138,638,843.46-60,791,407.20

Finding the Fourth Proportional to 100,469,098.44, 138,638,843.46 and 60,791,407.20

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Solution

The fourth proportional to 100,469,098.44, 138,638,843.46 and 60,791,407.20 is: 83,886,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,469,098.44 : 138,638,843.46 = 60,791,407.20 : x
  2. Step 2: Convert to fraction form
    100,469,098.44/138,638,843.46 = 60,791,407.20/x
  3. Step 3: Cross multiply
    100,469,098.44x = 138,638,843.46 × 60,791,407.20
  4. Step 4: Simplify right side
    100,469,098.44x = 8,428,050,386,513,918
  5. Step 5: Solve for x
    x = 8,428,050,386,513,918/100,469,098.44
  6. Step 6: Final answer
    x = 83,886,991.30

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1.5x scale

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.