Home / 12,522,716.78-18,783,807.77-3,424,814.38

Finding the Fourth Proportional to 12,522,716.78, 18,783,807.77 and 3,424,814.38

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Solution

The fourth proportional to 12,522,716.78, 18,783,807.77 and 3,424,814.38 is: 5,137,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522,716.78 : 18,783,807.77 = 3,424,814.38 : x
  2. Step 2: Convert to fraction form
    12,522,716.78/18,783,807.77 = 3,424,814.38/x
  3. Step 3: Cross multiply
    12,522,716.78x = 18,783,807.77 × 3,424,814.38
  4. Step 4: Simplify right side
    12,522,716.78x = 64,331,054,932,672.46
  5. Step 5: Solve for x
    x = 64,331,054,932,672.46/12,522,716.78
  6. Step 6: Final answer
    x = 5,137,148.44

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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.