Home / 764,858,745.20-1,145,776,463.40-419,193,772.40

Finding the Fourth Proportional to 764,858,745.20, 1,145,776,463.40 and 419,193,772.40

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Solution

The fourth proportional to 764,858,745.20, 1,145,776,463.40 and 419,193,772.40 is: 627,962,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,858,745.20 : 1,145,776,463.40 = 419,193,772.40 : x
  2. Step 2: Convert to fraction form
    764,858,745.20/1,145,776,463.40 = 419,193,772.40/x
  3. Step 3: Cross multiply
    764,858,745.20x = 1,145,776,463.40 × 419,193,772.40
  4. Step 4: Simplify right side
    764,858,745.20x = 480,302,358,019,776,512
  5. Step 5: Solve for x
    x = 480,302,358,019,776,512/764,858,745.20
  6. Step 6: Final answer
    x = 627,962,170.84

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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.