Home / 220,490,969.34-330,736,453.89-82,327,366.29

Finding the Fourth Proportional to 220,490,969.34, 330,736,453.89 and 82,327,366.29

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Solution

The fourth proportional to 220,490,969.34, 330,736,453.89 and 82,327,366.29 is: 123,491,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,490,969.34 : 330,736,453.89 = 82,327,366.29 : x
  2. Step 2: Convert to fraction form
    220,490,969.34/330,736,453.89 = 82,327,366.29/x
  3. Step 3: Cross multiply
    220,490,969.34x = 330,736,453.89 × 82,327,366.29
  4. Step 4: Simplify right side
    220,490,969.34x = 27,228,661,184,857,728
  5. Step 5: Solve for x
    x = 27,228,661,184,857,728/220,490,969.34
  6. Step 6: Final answer
    x = 123,491,049.39

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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.