Home / 485,631,198.54-669,747,519.09-344,222,720.46

Finding the Fourth Proportional to 485,631,198.54, 669,747,519.09 and 344,222,720.46

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Solution

The fourth proportional to 485,631,198.54, 669,747,519.09 and 344,222,720.46 is: 474,727,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,631,198.54 : 669,747,519.09 = 344,222,720.46 : x
  2. Step 2: Convert to fraction form
    485,631,198.54/669,747,519.09 = 344,222,720.46/x
  3. Step 3: Cross multiply
    485,631,198.54x = 669,747,519.09 × 344,222,720.46
  4. Step 4: Simplify right side
    485,631,198.54x = 230,542,313,042,495,584
  5. Step 5: Solve for x
    x = 230,542,313,042,495,584/485,631,198.54
  6. Step 6: Final answer
    x = 474,727,146.31

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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.