Home / 78,723,843.66-108,660,514.91-45,694,733.62

Finding the Fourth Proportional to 78,723,843.66, 108,660,514.91 and 45,694,733.62

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Solution

The fourth proportional to 78,723,843.66, 108,660,514.91 and 45,694,733.62 is: 63,071,276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,723,843.66 : 108,660,514.91 = 45,694,733.62 : x
  2. Step 2: Convert to fraction form
    78,723,843.66/108,660,514.91 = 45,694,733.62/x
  3. Step 3: Cross multiply
    78,723,843.66x = 108,660,514.91 × 45,694,733.62
  4. Step 4: Simplify right side
    78,723,843.66x = 4,965,213,283,451,974
  5. Step 5: Solve for x
    x = 4,965,213,283,451,974/78,723,843.66
  6. Step 6: Final answer
    x = 63,071,276.15

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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.