Home / 789,631,573,469.50-1,089,691,571,388-451,686,115,805.52

Finding the Fourth Proportional to 789,631,573,469.50, 1,089,691,571,388 and 451,686,115,805.52

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Solution

The fourth proportional to 789,631,573,469.50, 1,089,691,571,388 and 451,686,115,805.52 is: 623,326,839,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,631,573,469.50 : 1,089,691,571,388 = 451,686,115,805.52 : x
  2. Step 2: Convert to fraction form
    789,631,573,469.50/1,089,691,571,388 = 451,686,115,805.52/x
  3. Step 3: Cross multiply
    789,631,573,469.50x = 1,089,691,571,388 × 451,686,115,805.52
  4. Step 4: Simplify right side
    789,631,573,469.50x = 492,198,553,306,259,225,837,568
  5. Step 5: Solve for x
    x = 492,198,553,306,259,225,837,568/789,631,573,469.50
  6. Step 6: Final answer
    x = 623,326,839,811.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.