Home / 415,198,213.20-622,750,080.60-108,521,326.80

Finding the Fourth Proportional to 415,198,213.20, 622,750,080.60 and 108,521,326.80

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Solution

The fourth proportional to 415,198,213.20, 622,750,080.60 and 108,521,326.80 is: 162,769,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,198,213.20 : 622,750,080.60 = 108,521,326.80 : x
  2. Step 2: Convert to fraction form
    415,198,213.20/622,750,080.60 = 108,521,326.80/x
  3. Step 3: Cross multiply
    415,198,213.20x = 622,750,080.60 × 108,521,326.80
  4. Step 4: Simplify right side
    415,198,213.20x = 67,581,665,011,518,944
  5. Step 5: Solve for x
    x = 67,581,665,011,518,944/415,198,213.20
  6. Step 6: Final answer
    x = 162,769,643.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.