Home / 464,115,797.51-640,491,915.13-255,277,420.34

Finding the Fourth Proportional to 464,115,797.51, 640,491,915.13 and 255,277,420.34

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Solution

The fourth proportional to 464,115,797.51, 640,491,915.13 and 255,277,420.34 is: 352,289,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,115,797.51 : 640,491,915.13 = 255,277,420.34 : x
  2. Step 2: Convert to fraction form
    464,115,797.51/640,491,915.13 = 255,277,420.34/x
  3. Step 3: Cross multiply
    464,115,797.51x = 640,491,915.13 × 255,277,420.34
  4. Step 4: Simplify right side
    464,115,797.51x = 163,503,123,839,171,968
  5. Step 5: Solve for x
    x = 163,503,123,839,171,968/464,115,797.51
  6. Step 6: Final answer
    x = 352,289,503.43

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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.