Home / 100,253,882.70-138,358,640.50-55,614,247.14

Finding the Fourth Proportional to 100,253,882.70, 138,358,640.50 and 55,614,247.14

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Solution

The fourth proportional to 100,253,882.70, 138,358,640.50 and 55,614,247.14 is: 76,752,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,253,882.70 : 138,358,640.50 = 55,614,247.14 : x
  2. Step 2: Convert to fraction form
    100,253,882.70/138,358,640.50 = 55,614,247.14/x
  3. Step 3: Cross multiply
    100,253,882.70x = 138,358,640.50 × 55,614,247.14
  4. Step 4: Simplify right side
    100,253,882.70x = 7,694,711,626,721,413
  5. Step 5: Solve for x
    x = 7,694,711,626,721,413/100,253,882.70
  6. Step 6: Final answer
    x = 76,752,255.57

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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.