Home / 78,080,623.43-107,751,270.56-43,275,560.90

Finding the Fourth Proportional to 78,080,623.43, 107,751,270.56 and 43,275,560.90

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Solution

The fourth proportional to 78,080,623.43, 107,751,270.56 and 43,275,560.90 is: 59,720,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,623.43 : 107,751,270.56 = 43,275,560.90 : x
  2. Step 2: Convert to fraction form
    78,080,623.43/107,751,270.56 = 43,275,560.90/x
  3. Step 3: Cross multiply
    78,080,623.43x = 107,751,270.56 × 43,275,560.90
  4. Step 4: Simplify right side
    78,080,623.43x = 4,662,996,670,416,524
  5. Step 5: Solve for x
    x = 4,662,996,670,416,524/78,080,623.43
  6. Step 6: Final answer
    x = 59,720,279.70

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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.