Home / 512,188,115.24-768,404,397-167,142,384.20

Finding the Fourth Proportional to 512,188,115.24, 768,404,397 and 167,142,384.20

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Solution

The fourth proportional to 512,188,115.24, 768,404,397 and 167,142,384.20 is: 250,753,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,188,115.24 : 768,404,397 = 167,142,384.20 : x
  2. Step 2: Convert to fraction form
    512,188,115.24/768,404,397 = 167,142,384.20/x
  3. Step 3: Cross multiply
    512,188,115.24x = 768,404,397 × 167,142,384.20
  4. Step 4: Simplify right side
    512,188,115.24x = 128,432,942,944,343,312
  5. Step 5: Solve for x
    x = 128,432,942,944,343,312/512,188,115.24
  6. Step 6: Final answer
    x = 250,753,461.71

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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.