Home / 431,369,118.20-647,053,677.30-189,504,414.20

Finding the Fourth Proportional to 431,369,118.20, 647,053,677.30 and 189,504,414.20

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Solution

The fourth proportional to 431,369,118.20, 647,053,677.30 and 189,504,414.20 is: 284,256,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,369,118.20 : 647,053,677.30 = 189,504,414.20 : x
  2. Step 2: Convert to fraction form
    431,369,118.20/647,053,677.30 = 189,504,414.20/x
  3. Step 3: Cross multiply
    431,369,118.20x = 647,053,677.30 × 189,504,414.20
  4. Step 4: Simplify right side
    431,369,118.20x = 122,619,528,072,692,320
  5. Step 5: Solve for x
    x = 122,619,528,072,692,320/431,369,118.20
  6. Step 6: Final answer
    x = 284,256,621.30

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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.