Home / 218,512,979.40-327,769,469.10-200,656,561.80

Finding the Fourth Proportional to 218,512,979.40, 327,769,469.10 and 200,656,561.80

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Solution

The fourth proportional to 218,512,979.40, 327,769,469.10 and 200,656,561.80 is: 300,984,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,512,979.40 : 327,769,469.10 = 200,656,561.80 : x
  2. Step 2: Convert to fraction form
    218,512,979.40/327,769,469.10 = 200,656,561.80/x
  3. Step 3: Cross multiply
    218,512,979.40x = 327,769,469.10 × 200,656,561.80
  4. Step 4: Simplify right side
    218,512,979.40x = 65,769,094,732,617,352
  5. Step 5: Solve for x
    x = 65,769,094,732,617,352/218,512,979.40
  6. Step 6: Final answer
    x = 300,984,842.70

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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.