Home / 13,978,143.62-20,960,199.14-8,144,217.69

Finding the Fourth Proportional to 13,978,143.62, 20,960,199.14 and 8,144,217.69

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Solution

The fourth proportional to 13,978,143.62, 20,960,199.14 and 8,144,217.69 is: 12,212,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,978,143.62 : 20,960,199.14 = 8,144,217.69 : x
  2. Step 2: Convert to fraction form
    13,978,143.62/20,960,199.14 = 8,144,217.69/x
  3. Step 3: Cross multiply
    13,978,143.62x = 20,960,199.14 × 8,144,217.69
  4. Step 4: Simplify right side
    13,978,143.62x = 170,704,424,642,271.31
  5. Step 5: Solve for x
    x = 170,704,424,642,271.31/13,978,143.62
  6. Step 6: Final answer
    x = 12,212,238.57

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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.