Home / 764,858,702.70-1,145,776,399.65-419,193,729.90

Finding the Fourth Proportional to 764,858,702.70, 1,145,776,399.65 and 419,193,729.90

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Solution

The fourth proportional to 764,858,702.70, 1,145,776,399.65 and 419,193,729.90 is: 627,962,107.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,858,702.70 : 1,145,776,399.65 = 419,193,729.90 : x
  2. Step 2: Convert to fraction form
    764,858,702.70/1,145,776,399.65 = 419,193,729.90/x
  3. Step 3: Cross multiply
    764,858,702.70x = 1,145,776,399.65 × 419,193,729.90
  4. Step 4: Simplify right side
    764,858,702.70x = 480,302,282,600,676,544
  5. Step 5: Solve for x
    x = 480,302,282,600,676,544/764,858,702.70
  6. Step 6: Final answer
    x = 627,962,107.13

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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.