Home / 485,631,199.54-669,747,520.47-344,222,721.46

Finding the Fourth Proportional to 485,631,199.54, 669,747,520.47 and 344,222,721.46

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Solution

The fourth proportional to 485,631,199.54, 669,747,520.47 and 344,222,721.46 is: 474,727,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,631,199.54 : 669,747,520.47 = 344,222,721.46 : x
  2. Step 2: Convert to fraction form
    485,631,199.54/669,747,520.47 = 344,222,721.46/x
  3. Step 3: Cross multiply
    485,631,199.54x = 669,747,520.47 × 344,222,721.46
  4. Step 4: Simplify right side
    485,631,199.54x = 230,542,314,187,270,464
  5. Step 5: Solve for x
    x = 230,542,314,187,270,464/485,631,199.54
  6. Step 6: Final answer
    x = 474,727,147.69

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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.