Home / 18,803,288.62-28,204,942.20-12,412,047.16

Finding the Fourth Proportional to 18,803,288.62, 28,204,942.20 and 12,412,047.16

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Solution

The fourth proportional to 18,803,288.62, 28,204,942.20 and 12,412,047.16 is: 18,618,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803,288.62 : 28,204,942.20 = 12,412,047.16 : x
  2. Step 2: Convert to fraction form
    18,803,288.62/28,204,942.20 = 12,412,047.16/x
  3. Step 3: Cross multiply
    18,803,288.62x = 28,204,942.20 × 12,412,047.16
  4. Step 4: Simplify right side
    18,803,288.62x = 350,081,072,731,474.12
  5. Step 5: Solve for x
    x = 350,081,072,731,474.12/18,803,288.62
  6. Step 6: Final answer
    x = 18,618,076.86

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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.