Home / 150,058,830.38-207,081,185.92-81,381,198.38

Finding the Fourth Proportional to 150,058,830.38, 207,081,185.92 and 81,381,198.38

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Solution

The fourth proportional to 150,058,830.38, 207,081,185.92 and 81,381,198.38 is: 112,306,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,058,830.38 : 207,081,185.92 = 81,381,198.38 : x
  2. Step 2: Convert to fraction form
    150,058,830.38/207,081,185.92 = 81,381,198.38/x
  3. Step 3: Cross multiply
    150,058,830.38x = 207,081,185.92 × 81,381,198.38
  4. Step 4: Simplify right side
    150,058,830.38x = 16,852,515,070,882,324
  5. Step 5: Solve for x
    x = 16,852,515,070,882,324/150,058,830.38
  6. Step 6: Final answer
    x = 112,306,053.76

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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.