Home / 431,969,676.20-647,954,514.30-345,876,234.20

Finding the Fourth Proportional to 431,969,676.20, 647,954,514.30 and 345,876,234.20

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Solution

The fourth proportional to 431,969,676.20, 647,954,514.30 and 345,876,234.20 is: 518,814,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,969,676.20 : 647,954,514.30 = 345,876,234.20 : x
  2. Step 2: Convert to fraction form
    431,969,676.20/647,954,514.30 = 345,876,234.20/x
  3. Step 3: Cross multiply
    431,969,676.20x = 647,954,514.30 × 345,876,234.20
  4. Step 4: Simplify right side
    431,969,676.20x = 224,112,067,338,974,016
  5. Step 5: Solve for x
    x = 224,112,067,338,974,016/431,969,676.20
  6. Step 6: Final answer
    x = 518,814,351.30

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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.