Home / 408,140,047.26-612,563,825.43-214,188,489.18

Finding the Fourth Proportional to 408,140,047.26, 612,563,825.43 and 214,188,489.18

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Solution

The fourth proportional to 408,140,047.26, 612,563,825.43 and 214,188,489.18 is: 321,468,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,140,047.26 : 612,563,825.43 = 214,188,489.18 : x
  2. Step 2: Convert to fraction form
    408,140,047.26/612,563,825.43 = 214,188,489.18/x
  3. Step 3: Cross multiply
    408,140,047.26x = 612,563,825.43 × 214,188,489.18
  4. Step 4: Simplify right side
    408,140,047.26x = 131,204,120,295,172,960
  5. Step 5: Solve for x
    x = 131,204,120,295,172,960/408,140,047.26
  6. Step 6: Final answer
    x = 321,468,381.20

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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.