Home / 220,851,471.80-331,274,097.30-99,682,729.40

Finding the Fourth Proportional to 220,851,471.80, 331,274,097.30 and 99,682,729.40

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Solution

The fourth proportional to 220,851,471.80, 331,274,097.30 and 99,682,729.40 is: 149,522,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,851,471.80 : 331,274,097.30 = 99,682,729.40 : x
  2. Step 2: Convert to fraction form
    220,851,471.80/331,274,097.30 = 99,682,729.40/x
  3. Step 3: Cross multiply
    220,851,471.80x = 331,274,097.30 × 99,682,729.40
  4. Step 4: Simplify right side
    220,851,471.80x = 33,022,306,198,385,172
  5. Step 5: Solve for x
    x = 33,022,306,198,385,172/220,851,471.80
  6. Step 6: Final answer
    x = 149,522,690.20

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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.