Home / 18,941,162.78-26,145,912.89-12,415,212.80

Finding the Fourth Proportional to 18,941,162.78, 26,145,912.89 and 12,415,212.80

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Solution

The fourth proportional to 18,941,162.78, 26,145,912.89 and 12,415,212.80 is: 17,137,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941,162.78 : 26,145,912.89 = 12,415,212.80 : x
  2. Step 2: Convert to fraction form
    18,941,162.78/26,145,912.89 = 12,415,212.80/x
  3. Step 3: Cross multiply
    18,941,162.78x = 26,145,912.89 × 12,415,212.80
  4. Step 4: Simplify right side
    18,941,162.78x = 324,607,072,379,613
  5. Step 5: Solve for x
    x = 324,607,072,379,613/18,941,162.78
  6. Step 6: Final answer
    x = 17,137,652.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.