Home / 18,898,279.12-28,351,923.96-6,118,787.56

Finding the Fourth Proportional to 18,898,279.12, 28,351,923.96 and 6,118,787.56

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Solution

The fourth proportional to 18,898,279.12, 28,351,923.96 and 6,118,787.56 is: 9,179,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,279.12 : 28,351,923.96 = 6,118,787.56 : x
  2. Step 2: Convert to fraction form
    18,898,279.12/28,351,923.96 = 6,118,787.56/x
  3. Step 3: Cross multiply
    18,898,279.12x = 28,351,923.96 × 6,118,787.56
  4. Step 4: Simplify right side
    18,898,279.12x = 173,479,399,628,513.94
  5. Step 5: Solve for x
    x = 173,479,399,628,513.94/18,898,279.12
  6. Step 6: Final answer
    x = 9,179,640.04

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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.