Home / 198,773,887.80-298,328,793.30-77,692,236.60

Finding the Fourth Proportional to 198,773,887.80, 298,328,793.30 and 77,692,236.60

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Solution

The fourth proportional to 198,773,887.80, 298,328,793.30 and 77,692,236.60 is: 116,604,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,773,887.80 : 298,328,793.30 = 77,692,236.60 : x
  2. Step 2: Convert to fraction form
    198,773,887.80/298,328,793.30 = 77,692,236.60/x
  3. Step 3: Cross multiply
    198,773,887.80x = 298,328,793.30 × 77,692,236.60
  4. Step 4: Simplify right side
    198,773,887.80x = 23,177,831,193,656,092
  5. Step 5: Solve for x
    x = 23,177,831,193,656,092/198,773,887.80
  6. Step 6: Final answer
    x = 116,604,003.93

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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.