Home / 808,591,359.12-1,115,856,076.68-437,313,391.44

Finding the Fourth Proportional to 808,591,359.12, 1,115,856,076.68 and 437,313,391.44

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Solution

The fourth proportional to 808,591,359.12, 1,115,856,076.68 and 437,313,391.44 is: 603,492,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,591,359.12 : 1,115,856,076.68 = 437,313,391.44 : x
  2. Step 2: Convert to fraction form
    808,591,359.12/1,115,856,076.68 = 437,313,391.44/x
  3. Step 3: Cross multiply
    808,591,359.12x = 1,115,856,076.68 × 437,313,391.44
  4. Step 4: Simplify right side
    808,591,359.12x = 487,978,805,251,863,552
  5. Step 5: Solve for x
    x = 487,978,805,251,863,552/808,591,359.12
  6. Step 6: Final answer
    x = 603,492,480.78

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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.