Home / 354,350,857.40-531,526,286.10-198,744,932.60

Finding the Fourth Proportional to 354,350,857.40, 531,526,286.10 and 198,744,932.60

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Solution

The fourth proportional to 354,350,857.40, 531,526,286.10 and 198,744,932.60 is: 298,117,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350,857.40 : 531,526,286.10 = 198,744,932.60 : x
  2. Step 2: Convert to fraction form
    354,350,857.40/531,526,286.10 = 198,744,932.60/x
  3. Step 3: Cross multiply
    354,350,857.40x = 531,526,286.10 × 198,744,932.60
  4. Step 4: Simplify right side
    354,350,857.40x = 105,638,155,906,072,816
  5. Step 5: Solve for x
    x = 105,638,155,906,072,816/354,350,857.40
  6. Step 6: Final answer
    x = 298,117,398.90

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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.