Home / 150,058,818.82-207,081,169.97-81,381,186.82

Finding the Fourth Proportional to 150,058,818.82, 207,081,169.97 and 81,381,186.82

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Solution

The fourth proportional to 150,058,818.82, 207,081,169.97 and 81,381,186.82 is: 112,306,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,058,818.82 : 207,081,169.97 = 81,381,186.82 : x
  2. Step 2: Convert to fraction form
    150,058,818.82/207,081,169.97 = 81,381,186.82/x
  3. Step 3: Cross multiply
    150,058,818.82x = 207,081,169.97 × 81,381,186.82
  4. Step 4: Simplify right side
    150,058,818.82x = 16,852,511,378,790,432
  5. Step 5: Solve for x
    x = 16,852,511,378,790,432/150,058,818.82
  6. Step 6: Final answer
    x = 112,306,037.80

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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.