Home / 355,890,321.16-491,086,640.10-205,181,280.52

Finding the Fourth Proportional to 355,890,321.16, 491,086,640.10 and 205,181,280.52

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Solution

The fourth proportional to 355,890,321.16, 491,086,640.10 and 205,181,280.52 is: 283,125,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,890,321.16 : 491,086,640.10 = 205,181,280.52 : x
  2. Step 2: Convert to fraction form
    355,890,321.16/491,086,640.10 = 205,181,280.52/x
  3. Step 3: Cross multiply
    355,890,321.16x = 491,086,640.10 × 205,181,280.52
  4. Step 4: Simplify right side
    355,890,321.16x = 100,761,785,661,982,384
  5. Step 5: Solve for x
    x = 100,761,785,661,982,384/355,890,321.16
  6. Step 6: Final answer
    x = 283,125,951.09

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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.