Home / 872,895,629.70-1,309,515,930.83-320,203,191.06

Finding the Fourth Proportional to 872,895,629.70, 1,309,515,930.83 and 320,203,191.06

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Solution

The fourth proportional to 872,895,629.70, 1,309,515,930.83 and 320,203,191.06 is: 480,368,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,895,629.70 : 1,309,515,930.83 = 320,203,191.06 : x
  2. Step 2: Convert to fraction form
    872,895,629.70/1,309,515,930.83 = 320,203,191.06/x
  3. Step 3: Cross multiply
    872,895,629.70x = 1,309,515,930.83 × 320,203,191.06
  4. Step 4: Simplify right side
    872,895,629.70x = 419,311,179,795,672,192
  5. Step 5: Solve for x
    x = 419,311,179,795,672,192/872,895,629.70
  6. Step 6: Final answer
    x = 480,368,059.51

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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.