Home / 320,522,433-442,320,986.70-181,290,198.12

Finding the Fourth Proportional to 320,522,433, 442,320,986.70 and 181,290,198.12

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Solution

The fourth proportional to 320,522,433, 442,320,986.70 and 181,290,198.12 is: 250,180,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,522,433 : 442,320,986.70 = 181,290,198.12 : x
  2. Step 2: Convert to fraction form
    320,522,433/442,320,986.70 = 181,290,198.12/x
  3. Step 3: Cross multiply
    320,522,433x = 442,320,986.70 × 181,290,198.12
  4. Step 4: Simplify right side
    320,522,433x = 80,188,459,311,476,880
  5. Step 5: Solve for x
    x = 80,188,459,311,476,880/320,522,433
  6. Step 6: Final answer
    x = 250,180,489.90

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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.