Home / 149,040,639.27-223,656,618.38-72,321,816.51

Finding the Fourth Proportional to 149,040,639.27, 223,656,618.38 and 72,321,816.51

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Solution

The fourth proportional to 149,040,639.27, 223,656,618.38 and 72,321,816.51 is: 108,529,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,040,639.27 : 223,656,618.38 = 72,321,816.51 : x
  2. Step 2: Convert to fraction form
    149,040,639.27/223,656,618.38 = 72,321,816.51/x
  3. Step 3: Cross multiply
    149,040,639.27x = 223,656,618.38 × 72,321,816.51
  4. Step 4: Simplify right side
    149,040,639.27x = 16,175,252,915,363,846
  5. Step 5: Solve for x
    x = 16,175,252,915,363,846/149,040,639.27
  6. Step 6: Final answer
    x = 108,529,143.42

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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.