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Finding the Fourth Proportional to 269,568,468.70, 404,352,703.05 and 258,986,887.90

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Solution

The fourth proportional to 269,568,468.70, 404,352,703.05 and 258,986,887.90 is: 388,480,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,568,468.70 : 404,352,703.05 = 258,986,887.90 : x
  2. Step 2: Convert to fraction form
    269,568,468.70/404,352,703.05 = 258,986,887.90/x
  3. Step 3: Cross multiply
    269,568,468.70x = 404,352,703.05 × 258,986,887.90
  4. Step 4: Simplify right side
    269,568,468.70x = 104,722,048,176,872,336
  5. Step 5: Solve for x
    x = 104,722,048,176,872,336/269,568,468.70
  6. Step 6: Final answer
    x = 388,480,331.85

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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.