Home / 393,649,647.60-590,474,471.40-163,542,255.60

Finding the Fourth Proportional to 393,649,647.60, 590,474,471.40 and 163,542,255.60

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Solution

The fourth proportional to 393,649,647.60, 590,474,471.40 and 163,542,255.60 is: 245,313,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,649,647.60 : 590,474,471.40 = 163,542,255.60 : x
  2. Step 2: Convert to fraction form
    393,649,647.60/590,474,471.40 = 163,542,255.60/x
  3. Step 3: Cross multiply
    393,649,647.60x = 590,474,471.40 × 163,542,255.60
  4. Step 4: Simplify right side
    393,649,647.60x = 96,567,526,926,973,680
  5. Step 5: Solve for x
    x = 96,567,526,926,973,680/393,649,647.60
  6. Step 6: Final answer
    x = 245,313,383.40

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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.