Home / 78,067,218.44-107,733,394.77-43,260,489.74

Finding the Fourth Proportional to 78,067,218.44, 107,733,394.77 and 43,260,489.74

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Solution

The fourth proportional to 78,067,218.44, 107,733,394.77 and 43,260,489.74 is: 59,699,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,218.44 : 107,733,394.77 = 43,260,489.74 : x
  2. Step 2: Convert to fraction form
    78,067,218.44/107,733,394.77 = 43,260,489.74/x
  3. Step 3: Cross multiply
    78,067,218.44x = 107,733,394.77 × 43,260,489.74
  4. Step 4: Simplify right side
    78,067,218.44x = 4,660,599,419,102,955
  5. Step 5: Solve for x
    x = 4,660,599,419,102,955/78,067,218.44
  6. Step 6: Final answer
    x = 59,699,826.79

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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.