Home / 78,080,613.68-107,751,257.09-43,275,551.15

Finding the Fourth Proportional to 78,080,613.68, 107,751,257.09 and 43,275,551.15

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Solution

The fourth proportional to 78,080,613.68, 107,751,257.09 and 43,275,551.15 is: 59,720,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,613.68 : 107,751,257.09 = 43,275,551.15 : x
  2. Step 2: Convert to fraction form
    78,080,613.68/107,751,257.09 = 43,275,551.15/x
  3. Step 3: Cross multiply
    78,080,613.68x = 107,751,257.09 × 43,275,551.15
  4. Step 4: Simplify right side
    78,080,613.68x = 4,662,995,036,919,961
  5. Step 5: Solve for x
    x = 4,662,995,036,919,961/78,080,613.68
  6. Step 6: Final answer
    x = 59,720,266.24

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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.