Home / 18,855,660.56-28,271,915.69-7,327,667.43

Finding the Fourth Proportional to 18,855,660.56, 28,271,915.69 and 7,327,667.43

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Solution

The fourth proportional to 18,855,660.56, 28,271,915.69 and 7,327,667.43 is: 10,987,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,660.56 : 28,271,915.69 = 7,327,667.43 : x
  2. Step 2: Convert to fraction form
    18,855,660.56/28,271,915.69 = 7,327,667.43/x
  3. Step 3: Cross multiply
    18,855,660.56x = 28,271,915.69 × 7,327,667.43
  4. Step 4: Simplify right side
    18,855,660.56x = 207,167,195,748,680.62
  5. Step 5: Solve for x
    x = 207,167,195,748,680.62/18,855,660.56
  6. Step 6: Final answer
    x = 10,987,002.82

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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.