Home / 28,554,123.68-42,740,828.24-18,305,286.56

Finding the Fourth Proportional to 28,554,123.68, 42,740,828.24 and 18,305,286.56

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Solution

The fourth proportional to 28,554,123.68, 42,740,828.24 and 18,305,286.56 is: 27,400,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554,123.68 : 42,740,828.24 = 18,305,286.56 : x
  2. Step 2: Convert to fraction form
    28,554,123.68/42,740,828.24 = 18,305,286.56/x
  3. Step 3: Cross multiply
    28,554,123.68x = 42,740,828.24 × 18,305,286.56
  4. Step 4: Simplify right side
    28,554,123.68x = 782,383,108,744,940.38
  5. Step 5: Solve for x
    x = 782,383,108,744,940.38/28,554,123.68
  6. Step 6: Final answer
    x = 27,400,004.20

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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.