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Finding the Fourth Proportional to 269,549,339.70, 404,324,009.55 and 258,967,758.90

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Solution

The fourth proportional to 269,549,339.70, 404,324,009.55 and 258,967,758.90 is: 388,451,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,549,339.70 : 404,324,009.55 = 258,967,758.90 : x
  2. Step 2: Convert to fraction form
    269,549,339.70/404,324,009.55 = 258,967,758.90/x
  3. Step 3: Cross multiply
    269,549,339.70x = 404,324,009.55 × 258,967,758.90
  4. Step 4: Simplify right side
    269,549,339.70x = 104,706,882,622,625,696
  5. Step 5: Solve for x
    x = 104,706,882,622,625,696/269,549,339.70
  6. Step 6: Final answer
    x = 388,451,638.35

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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.