Home / 393,188,288.40-590,160,346.20-199,318,611.60

Finding the Fourth Proportional to 393,188,288.40, 590,160,346.20 and 199,318,611.60

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Solution

The fourth proportional to 393,188,288.40, 590,160,346.20 and 199,318,611.60 is: 299,169,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,188,288.40 : 590,160,346.20 = 199,318,611.60 : x
  2. Step 2: Convert to fraction form
    393,188,288.40/590,160,346.20 = 199,318,611.60/x
  3. Step 3: Cross multiply
    393,188,288.40x = 590,160,346.20 × 199,318,611.60
  4. Step 4: Simplify right side
    393,188,288.40x = 117,629,940,825,959,344
  5. Step 5: Solve for x
    x = 117,629,940,825,959,344/393,188,288.40
  6. Step 6: Final answer
    x = 299,169,492.83

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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.