Home / 764,858,705.70-1,145,776,404.15-419,193,732.90

Finding the Fourth Proportional to 764,858,705.70, 1,145,776,404.15 and 419,193,732.90

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Solution

The fourth proportional to 764,858,705.70, 1,145,776,404.15 and 419,193,732.90 is: 627,962,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,858,705.70 : 1,145,776,404.15 = 419,193,732.90 : x
  2. Step 2: Convert to fraction form
    764,858,705.70/1,145,776,404.15 = 419,193,732.90/x
  3. Step 3: Cross multiply
    764,858,705.70x = 1,145,776,404.15 × 419,193,732.90
  4. Step 4: Simplify right side
    764,858,705.70x = 480,302,287,924,377,536
  5. Step 5: Solve for x
    x = 480,302,287,924,377,536/764,858,705.70
  6. Step 6: Final answer
    x = 627,962,111.62

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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.