Home / 254,112,755.72-380,983,304.46-81,491,309.96

Finding the Fourth Proportional to 254,112,755.72, 380,983,304.46 and 81,491,309.96

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Solution

The fourth proportional to 254,112,755.72, 380,983,304.46 and 81,491,309.96 is: 122,177,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,112,755.72 : 380,983,304.46 = 81,491,309.96 : x
  2. Step 2: Convert to fraction form
    254,112,755.72/380,983,304.46 = 81,491,309.96/x
  3. Step 3: Cross multiply
    254,112,755.72x = 380,983,304.46 × 81,491,309.96
  4. Step 4: Simplify right side
    254,112,755.72x = 31,046,828,553,334,908
  5. Step 5: Solve for x
    x = 31,046,828,553,334,908/254,112,755.72
  6. Step 6: Final answer
    x = 122,177,371.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.