Home / 1,229,269,043.21-1,843,639,375.65-388,978,375.05

Finding the Fourth Proportional to 1,229,269,043.21, 1,843,639,375.65 and 388,978,375.05

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Solution

The fourth proportional to 1,229,269,043.21, 1,843,639,375.65 and 388,978,375.05 is: 583,383,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,269,043.21 : 1,843,639,375.65 = 388,978,375.05 : x
  2. Step 2: Convert to fraction form
    1,229,269,043.21/1,843,639,375.65 = 388,978,375.05/x
  3. Step 3: Cross multiply
    1,229,269,043.21x = 1,843,639,375.65 × 388,978,375.05
  4. Step 4: Simplify right side
    1,229,269,043.21x = 717,135,848,518,533,632
  5. Step 5: Solve for x
    x = 717,135,848,518,533,632/1,229,269,043.21
  6. Step 6: Final answer
    x = 583,383,965.03

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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.