Home / 407,949,568.80-611,924,353.20-327,328,000.80

Finding the Fourth Proportional to 407,949,568.80, 611,924,353.20 and 327,328,000.80

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Solution

The fourth proportional to 407,949,568.80, 611,924,353.20 and 327,328,000.80 is: 490,992,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,949,568.80 : 611,924,353.20 = 327,328,000.80 : x
  2. Step 2: Convert to fraction form
    407,949,568.80/611,924,353.20 = 327,328,000.80/x
  3. Step 3: Cross multiply
    407,949,568.80x = 611,924,353.20 × 327,328,000.80
  4. Step 4: Simplify right side
    407,949,568.80x = 200,299,975,173,789,120
  5. Step 5: Solve for x
    x = 200,299,975,173,789,120/407,949,568.80
  6. Step 6: Final answer
    x = 490,992,001.20

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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.