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Finding the Fourth Proportional to 481,534,896.06, 664,522,061.67 and 261,519,896.70

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Solution

The fourth proportional to 481,534,896.06, 664,522,061.67 and 261,519,896.70 is: 360,899,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,534,896.06 : 664,522,061.67 = 261,519,896.70 : x
  2. Step 2: Convert to fraction form
    481,534,896.06/664,522,061.67 = 261,519,896.70/x
  3. Step 3: Cross multiply
    481,534,896.06x = 664,522,061.67 × 261,519,896.70
  4. Step 4: Simplify right side
    481,534,896.06x = 173,785,740,922,809,408
  5. Step 5: Solve for x
    x = 173,785,740,922,809,408/481,534,896.06
  6. Step 6: Final answer
    x = 360,899,578.30

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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.