Home / 789,631,573,503.85-1,089,691,571,435.30-451,686,115,839.82

Finding the Fourth Proportional to 789,631,573,503.85, 1,089,691,571,435.30 and 451,686,115,839.82

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Solution

The fourth proportional to 789,631,573,503.85, 1,089,691,571,435.30 and 451,686,115,839.82 is: 623,326,839,858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,631,573,503.85 : 1,089,691,571,435.30 = 451,686,115,839.82 : x
  2. Step 2: Convert to fraction form
    789,631,573,503.85/1,089,691,571,435.30 = 451,686,115,839.82/x
  3. Step 3: Cross multiply
    789,631,573,503.85x = 1,089,691,571,435.30 × 451,686,115,839.82
  4. Step 4: Simplify right side
    789,631,573,503.85x = 492,198,553,365,000,419,803,136
  5. Step 5: Solve for x
    x = 492,198,553,365,000,419,803,136/789,631,573,503.85
  6. Step 6: Final answer
    x = 623,326,839,858.94

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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.