Home / 393,305,318.20-589,875,308.70-199,034,108.20

Finding the Fourth Proportional to 393,305,318.20, 589,875,308.70 and 199,034,108.20

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Solution

The fourth proportional to 393,305,318.20, 589,875,308.70 and 199,034,108.20 is: 298,509,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,305,318.20 : 589,875,308.70 = 199,034,108.20 : x
  2. Step 2: Convert to fraction form
    393,305,318.20/589,875,308.70 = 199,034,108.20/x
  3. Step 3: Cross multiply
    393,305,318.20x = 589,875,308.70 × 199,034,108.20
  4. Step 4: Simplify right side
    393,305,318.20x = 117,405,306,016,304,208
  5. Step 5: Solve for x
    x = 117,405,306,016,304,208/393,305,318.20
  6. Step 6: Final answer
    x = 298,509,327.44

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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.