Home / 407,949,240.80-611,923,861.20-327,327,672.80

Finding the Fourth Proportional to 407,949,240.80, 611,923,861.20 and 327,327,672.80

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Solution

The fourth proportional to 407,949,240.80, 611,923,861.20 and 327,327,672.80 is: 490,991,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,949,240.80 : 611,923,861.20 = 327,327,672.80 : x
  2. Step 2: Convert to fraction form
    407,949,240.80/611,923,861.20 = 327,327,672.80/x
  3. Step 3: Cross multiply
    407,949,240.80x = 611,923,861.20 × 327,327,672.80
  4. Step 4: Simplify right side
    407,949,240.80x = 200,299,613,417,386,240
  5. Step 5: Solve for x
    x = 200,299,613,417,386,240/407,949,240.80
  6. Step 6: Final answer
    x = 490,991,509.20

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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.