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Finding the Fourth Proportional to 865,885,021.26, 1,299,044,093.52 and 252,469,247

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Solution

The fourth proportional to 865,885,021.26, 1,299,044,093.52 and 252,469,247 is: 378,767,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,885,021.26 : 1,299,044,093.52 = 252,469,247 : x
  2. Step 2: Convert to fraction form
    865,885,021.26/1,299,044,093.52 = 252,469,247/x
  3. Step 3: Cross multiply
    865,885,021.26x = 1,299,044,093.52 × 252,469,247
  4. Step 4: Simplify right side
    865,885,021.26x = 327,968,684,110,792,000
  5. Step 5: Solve for x
    x = 327,968,684,110,792,000/865,885,021.26
  6. Step 6: Final answer
    x = 378,767,014.16

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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.