Home / 831,619,774.50-1,147,451,815.62-492,359,791.56

Finding the Fourth Proportional to 831,619,774.50, 1,147,451,815.62 and 492,359,791.56

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Solution

The fourth proportional to 831,619,774.50, 1,147,451,815.62 and 492,359,791.56 is: 679,347,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,619,774.50 : 1,147,451,815.62 = 492,359,791.56 : x
  2. Step 2: Convert to fraction form
    831,619,774.50/1,147,451,815.62 = 492,359,791.56/x
  3. Step 3: Cross multiply
    831,619,774.50x = 1,147,451,815.62 × 492,359,791.56
  4. Step 4: Simplify right side
    831,619,774.50x = 564,959,136,763,806,720
  5. Step 5: Solve for x
    x = 564,959,136,763,806,720/831,619,774.50
  6. Step 6: Final answer
    x = 679,347,887.20

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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.