Home / 789,631,573,505.85-1,089,691,571,438.10-451,686,115,841.81

Finding the Fourth Proportional to 789,631,573,505.85, 1,089,691,571,438.10 and 451,686,115,841.81

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Solution

The fourth proportional to 789,631,573,505.85, 1,089,691,571,438.10 and 451,686,115,841.81 is: 623,326,839,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,631,573,505.85 : 1,089,691,571,438.10 = 451,686,115,841.81 : x
  2. Step 2: Convert to fraction form
    789,631,573,505.85/1,089,691,571,438.10 = 451,686,115,841.81/x
  3. Step 3: Cross multiply
    789,631,573,505.85x = 1,089,691,571,438.10 × 451,686,115,841.81
  4. Step 4: Simplify right side
    789,631,573,505.85x = 492,198,553,368,433,575,067,648
  5. Step 5: Solve for x
    x = 492,198,553,368,433,575,067,648/789,631,573,505.85
  6. Step 6: Final answer
    x = 623,326,839,861.71

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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.