Home / 320,522,427-442,320,978.42-181,290,192.12

Finding the Fourth Proportional to 320,522,427, 442,320,978.42 and 181,290,192.12

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Solution

The fourth proportional to 320,522,427, 442,320,978.42 and 181,290,192.12 is: 250,180,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,522,427 : 442,320,978.42 = 181,290,192.12 : x
  2. Step 2: Convert to fraction form
    320,522,427/442,320,978.42 = 181,290,192.12/x
  3. Step 3: Cross multiply
    320,522,427x = 442,320,978.42 × 181,290,192.12
  4. Step 4: Simplify right side
    320,522,427x = 80,188,455,156,468,176
  5. Step 5: Solve for x
    x = 80,188,455,156,468,176/320,522,427
  6. Step 6: Final answer
    x = 250,180,481.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.