Home / 18,855,658.28-28,271,912.33-7,327,665.18

Finding the Fourth Proportional to 18,855,658.28, 28,271,912.33 and 7,327,665.18

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Solution

The fourth proportional to 18,855,658.28, 28,271,912.33 and 7,327,665.18 is: 10,986,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,658.28 : 28,271,912.33 = 7,327,665.18 : x
  2. Step 2: Convert to fraction form
    18,855,658.28/28,271,912.33 = 7,327,665.18/x
  3. Step 3: Cross multiply
    18,855,658.28x = 28,271,912.33 × 7,327,665.18
  4. Step 4: Simplify right side
    18,855,658.28x = 207,167,107,570,872.81
  5. Step 5: Solve for x
    x = 207,167,107,570,872.81/18,855,658.28
  6. Step 6: Final answer
    x = 10,986,999.47

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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.