Home / 18,853,780.05-28,280,489.37-11,171,895.23

Finding the Fourth Proportional to 18,853,780.05, 28,280,489.37 and 11,171,895.23

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Solution

The fourth proportional to 18,853,780.05, 28,280,489.37 and 11,171,895.23 is: 16,757,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853,780.05 : 28,280,489.37 = 11,171,895.23 : x
  2. Step 2: Convert to fraction form
    18,853,780.05/28,280,489.37 = 11,171,895.23/x
  3. Step 3: Cross multiply
    18,853,780.05x = 28,280,489.37 × 11,171,895.23
  4. Step 4: Simplify right side
    18,853,780.05x = 315,946,664,153,366.25
  5. Step 5: Solve for x
    x = 315,946,664,153,366.25/18,853,780.05
  6. Step 6: Final answer
    x = 16,757,735.76

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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.