Home / 464,115,796.38-640,491,913.58-255,277,419.21

Finding the Fourth Proportional to 464,115,796.38, 640,491,913.58 and 255,277,419.21

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Solution

The fourth proportional to 464,115,796.38, 640,491,913.58 and 255,277,419.21 is: 352,289,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,115,796.38 : 640,491,913.58 = 255,277,419.21 : x
  2. Step 2: Convert to fraction form
    464,115,796.38/640,491,913.58 = 255,277,419.21/x
  3. Step 3: Cross multiply
    464,115,796.38x = 640,491,913.58 × 255,277,419.21
  4. Step 4: Simplify right side
    464,115,796.38x = 163,503,122,722,300,384
  5. Step 5: Solve for x
    x = 163,503,122,722,300,384/464,115,796.38
  6. Step 6: Final answer
    x = 352,289,501.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.