Home / 218,326,683.80-327,490,025.70-72,764,993.90

Finding the Fourth Proportional to 218,326,683.80, 327,490,025.70 and 72,764,993.90

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Solution

The fourth proportional to 218,326,683.80, 327,490,025.70 and 72,764,993.90 is: 109,147,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,326,683.80 : 327,490,025.70 = 72,764,993.90 : x
  2. Step 2: Convert to fraction form
    218,326,683.80/327,490,025.70 = 72,764,993.90/x
  3. Step 3: Cross multiply
    218,326,683.80x = 327,490,025.70 × 72,764,993.90
  4. Step 4: Simplify right side
    218,326,683.80x = 23,829,809,722,371,344
  5. Step 5: Solve for x
    x = 23,829,809,722,371,344/218,326,683.80
  6. Step 6: Final answer
    x = 109,147,490.85

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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.