Home / 12,134,850.80-18,178,656.60-7,328,262.20

Finding the Fourth Proportional to 12,134,850.80, 18,178,656.60 and 7,328,262.20

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Solution

The fourth proportional to 12,134,850.80, 18,178,656.60 and 7,328,262.20 is: 10,978,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134,850.80 : 18,178,656.60 = 7,328,262.20 : x
  2. Step 2: Convert to fraction form
    12,134,850.80/18,178,656.60 = 7,328,262.20/x
  3. Step 3: Cross multiply
    12,134,850.80x = 18,178,656.60 × 7,328,262.20
  4. Step 4: Simplify right side
    12,134,850.80x = 133,217,962,008,560.53
  5. Step 5: Solve for x
    x = 133,217,962,008,560.53/12,134,850.80
  6. Step 6: Final answer
    x = 10,978,129.37

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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.