Home / 431,481,435.57-647,682,735.15-185,959,236.51

Finding the Fourth Proportional to 431,481,435.57, 647,682,735.15 and 185,959,236.51

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Solution

The fourth proportional to 431,481,435.57, 647,682,735.15 and 185,959,236.51 is: 279,137,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,481,435.57 : 647,682,735.15 = 185,959,236.51 : x
  2. Step 2: Convert to fraction form
    431,481,435.57/647,682,735.15 = 185,959,236.51/x
  3. Step 3: Cross multiply
    431,481,435.57x = 647,682,735.15 × 185,959,236.51
  4. Step 4: Simplify right side
    431,481,435.57x = 120,442,586,929,202,528
  5. Step 5: Solve for x
    x = 120,442,586,929,202,528/431,481,435.57
  6. Step 6: Final answer
    x = 279,137,355.63

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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.