Home / 200,120,861.52-299,790,340.23-137,861,178.09

Finding the Fourth Proportional to 200,120,861.52, 299,790,340.23 and 137,861,178.09

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Solution

The fourth proportional to 200,120,861.52, 299,790,340.23 and 137,861,178.09 is: 206,522,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,120,861.52 : 299,790,340.23 = 137,861,178.09 : x
  2. Step 2: Convert to fraction form
    200,120,861.52/299,790,340.23 = 137,861,178.09/x
  3. Step 3: Cross multiply
    200,120,861.52x = 299,790,340.23 × 137,861,178.09
  4. Step 4: Simplify right side
    200,120,861.52x = 41,329,449,484,109,728
  5. Step 5: Solve for x
    x = 41,329,449,484,109,728/200,120,861.52
  6. Step 6: Final answer
    x = 206,522,444.34

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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.