Home / 81,708,863.52-112,758,203.76-45,040,046.88

Finding the Fourth Proportional to 81,708,863.52, 112,758,203.76 and 45,040,046.88

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Solution

The fourth proportional to 81,708,863.52, 112,758,203.76 and 45,040,046.88 is: 62,155,249.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,708,863.52 : 112,758,203.76 = 45,040,046.88 : x
  2. Step 2: Convert to fraction form
    81,708,863.52/112,758,203.76 = 45,040,046.88/x
  3. Step 3: Cross multiply
    81,708,863.52x = 112,758,203.76 × 45,040,046.88
  4. Step 4: Simplify right side
    81,708,863.52x = 5,078,634,783,454,993
  5. Step 5: Solve for x
    x = 5,078,634,783,454,993/81,708,863.52
  6. Step 6: Final answer
    x = 62,155,249.32

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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.