Home / 407,949,576.30-611,924,364.45-327,328,008.30

Finding the Fourth Proportional to 407,949,576.30, 611,924,364.45 and 327,328,008.30

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Solution

The fourth proportional to 407,949,576.30, 611,924,364.45 and 327,328,008.30 is: 490,992,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,949,576.30 : 611,924,364.45 = 327,328,008.30 : x
  2. Step 2: Convert to fraction form
    407,949,576.30/611,924,364.45 = 327,328,008.30/x
  3. Step 3: Cross multiply
    407,949,576.30x = 611,924,364.45 × 327,328,008.30
  4. Step 4: Simplify right side
    407,949,576.30x = 200,299,983,445,661,856
  5. Step 5: Solve for x
    x = 200,299,983,445,661,856/407,949,576.30
  6. Step 6: Final answer
    x = 490,992,012.45

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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.