Home / 393,198,845.40-590,176,181.70-199,329,168.60

Finding the Fourth Proportional to 393,198,845.40, 590,176,181.70 and 199,329,168.60

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Solution

The fourth proportional to 393,198,845.40, 590,176,181.70 and 199,329,168.60 is: 299,185,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,845.40 : 590,176,181.70 = 199,329,168.60 : x
  2. Step 2: Convert to fraction form
    393,198,845.40/590,176,181.70 = 199,329,168.60/x
  3. Step 3: Cross multiply
    393,198,845.40x = 590,176,181.70 × 199,329,168.60
  4. Step 4: Simplify right side
    393,198,845.40x = 117,639,327,625,783,536
  5. Step 5: Solve for x
    x = 117,639,327,625,783,536/393,198,845.40
  6. Step 6: Final answer
    x = 299,185,333.33

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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.