Home / 221,266,371.60-305,339,589.18-122,144,991.30

Finding the Fourth Proportional to 221,266,371.60, 305,339,589.18 and 122,144,991.30

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Solution

The fourth proportional to 221,266,371.60, 305,339,589.18 and 122,144,991.30 is: 168,555,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,266,371.60 : 305,339,589.18 = 122,144,991.30 : x
  2. Step 2: Convert to fraction form
    221,266,371.60/305,339,589.18 = 122,144,991.30/x
  3. Step 3: Cross multiply
    221,266,371.60x = 305,339,589.18 × 122,144,991.30
  4. Step 4: Simplify right side
    221,266,371.60x = 37,295,701,463,936,672
  5. Step 5: Solve for x
    x = 37,295,701,463,936,672/221,266,371.60
  6. Step 6: Final answer
    x = 168,555,669.78

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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.