Home / 431,568,051.30-647,352,076.95-395,855,216.10

Finding the Fourth Proportional to 431,568,051.30, 647,352,076.95 and 395,855,216.10

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Solution

The fourth proportional to 431,568,051.30, 647,352,076.95 and 395,855,216.10 is: 593,782,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,568,051.30 : 647,352,076.95 = 395,855,216.10 : x
  2. Step 2: Convert to fraction form
    431,568,051.30/647,352,076.95 = 395,855,216.10/x
  3. Step 3: Cross multiply
    431,568,051.30x = 647,352,076.95 × 395,855,216.10
  4. Step 4: Simplify right side
    431,568,051.30x = 256,257,696,313,826,112
  5. Step 5: Solve for x
    x = 256,257,696,313,826,112/431,568,051.30
  6. Step 6: Final answer
    x = 593,782,824.15

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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.