Home / 275,212,443.44-379,707,668.72-156,115,407.20

Finding the Fourth Proportional to 275,212,443.44, 379,707,668.72 and 156,115,407.20

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Solution

The fourth proportional to 275,212,443.44, 379,707,668.72 and 156,115,407.20 is: 215,390,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,212,443.44 : 379,707,668.72 = 156,115,407.20 : x
  2. Step 2: Convert to fraction form
    275,212,443.44/379,707,668.72 = 156,115,407.20/x
  3. Step 3: Cross multiply
    275,212,443.44x = 379,707,668.72 × 156,115,407.20
  4. Step 4: Simplify right side
    275,212,443.44x = 59,278,217,319,185,504
  5. Step 5: Solve for x
    x = 59,278,217,319,185,504/275,212,443.44
  6. Step 6: Final answer
    x = 215,390,759.87

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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.