Home / 78,067,370.72-107,733,613.43-43,260,642.43

Finding the Fourth Proportional to 78,067,370.72, 107,733,613.43 and 43,260,642.43

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Solution

The fourth proportional to 78,067,370.72, 107,733,613.43 and 43,260,642.43 is: 59,700,042.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,370.72 : 107,733,613.43 = 43,260,642.43 : x
  2. Step 2: Convert to fraction form
    78,067,370.72/107,733,613.43 = 43,260,642.43/x
  3. Step 3: Cross multiply
    78,067,370.72x = 107,733,613.43 × 43,260,642.43
  4. Step 4: Simplify right side
    78,067,370.72x = 4,660,625,328,125,894
  5. Step 5: Solve for x
    x = 4,660,625,328,125,894/78,067,370.72
  6. Step 6: Final answer
    x = 59,700,042.22

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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.