Home / 27,981,819.63-38,613,891.63-15,591,272.85

Finding the Fourth Proportional to 27,981,819.63, 38,613,891.63 and 15,591,272.85

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Solution

The fourth proportional to 27,981,819.63, 38,613,891.63 and 15,591,272.85 is: 21,515,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981,819.63 : 38,613,891.63 = 15,591,272.85 : x
  2. Step 2: Convert to fraction form
    27,981,819.63/38,613,891.63 = 15,591,272.85/x
  3. Step 3: Cross multiply
    27,981,819.63x = 38,613,891.63 × 15,591,272.85
  4. Step 4: Simplify right side
    27,981,819.63x = 602,039,720,203,661.25
  5. Step 5: Solve for x
    x = 602,039,720,203,661.25/27,981,819.63
  6. Step 6: Final answer
    x = 21,515,388.50

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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.