Home / 431,369,112.20-647,053,668.30-189,504,408.20

Finding the Fourth Proportional to 431,369,112.20, 647,053,668.30 and 189,504,408.20

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Solution

The fourth proportional to 431,369,112.20, 647,053,668.30 and 189,504,408.20 is: 284,256,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,369,112.20 : 647,053,668.30 = 189,504,408.20 : x
  2. Step 2: Convert to fraction form
    431,369,112.20/647,053,668.30 = 189,504,408.20/x
  3. Step 3: Cross multiply
    431,369,112.20x = 647,053,668.30 × 189,504,408.20
  4. Step 4: Simplify right side
    431,369,112.20x = 122,619,522,484,830,576
  5. Step 5: Solve for x
    x = 122,619,522,484,830,576/431,369,112.20
  6. Step 6: Final answer
    x = 284,256,612.30

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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.