Home / 431,568,008.30-647,352,012.45-395,855,173.10

Finding the Fourth Proportional to 431,568,008.30, 647,352,012.45 and 395,855,173.10

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Solution

The fourth proportional to 431,568,008.30, 647,352,012.45 and 395,855,173.10 is: 593,782,759.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,568,008.30 : 647,352,012.45 = 395,855,173.10 : x
  2. Step 2: Convert to fraction form
    431,568,008.30/647,352,012.45 = 395,855,173.10/x
  3. Step 3: Cross multiply
    431,568,008.30x = 647,352,012.45 × 395,855,173.10
  4. Step 4: Simplify right side
    431,568,008.30x = 256,257,642,945,028,128
  5. Step 5: Solve for x
    x = 256,257,642,945,028,128/431,568,008.30
  6. Step 6: Final answer
    x = 593,782,759.65

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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.