Home / 464,115,801.38-640,491,920.48-255,277,424.21

Finding the Fourth Proportional to 464,115,801.38, 640,491,920.48 and 255,277,424.21

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Solution

The fourth proportional to 464,115,801.38, 640,491,920.48 and 255,277,424.21 is: 352,289,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,115,801.38 : 640,491,920.48 = 255,277,424.21 : x
  2. Step 2: Convert to fraction form
    464,115,801.38/640,491,920.48 = 255,277,424.21/x
  3. Step 3: Cross multiply
    464,115,801.38x = 640,491,920.48 × 255,277,424.21
  4. Step 4: Simplify right side
    464,115,801.38x = 163,503,127,686,174,176
  5. Step 5: Solve for x
    x = 163,503,127,686,174,176/464,115,801.38
  6. Step 6: Final answer
    x = 352,289,508.78

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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.