Home / 780,327,961.14-1,170,495,853.20-198,062,380.38

Finding the Fourth Proportional to 780,327,961.14, 1,170,495,853.20 and 198,062,380.38

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Solution

The fourth proportional to 780,327,961.14, 1,170,495,853.20 and 198,062,380.38 is: 297,094,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,327,961.14 : 1,170,495,853.20 = 198,062,380.38 : x
  2. Step 2: Convert to fraction form
    780,327,961.14/1,170,495,853.20 = 198,062,380.38/x
  3. Step 3: Cross multiply
    780,327,961.14x = 1,170,495,853.20 × 198,062,380.38
  4. Step 4: Simplify right side
    780,327,961.14x = 231,831,194,909,711,040
  5. Step 5: Solve for x
    x = 231,831,194,909,711,040/780,327,961.14
  6. Step 6: Final answer
    x = 297,094,563.38

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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.