Home / 20,351,201.70-30,517,945.20-6,699,072.90

Finding the Fourth Proportional to 20,351,201.70, 30,517,945.20 and 6,699,072.90

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Solution

The fourth proportional to 20,351,201.70, 30,517,945.20 and 6,699,072.90 is: 10,045,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351,201.70 : 30,517,945.20 = 6,699,072.90 : x
  2. Step 2: Convert to fraction form
    20,351,201.70/30,517,945.20 = 6,699,072.90/x
  3. Step 3: Cross multiply
    20,351,201.70x = 30,517,945.20 × 6,699,072.90
  4. Step 4: Simplify right side
    20,351,201.70x = 204,441,939,653,005.09
  5. Step 5: Solve for x
    x = 204,441,939,653,005.09/20,351,201.70
  6. Step 6: Final answer
    x = 10,045,693.75

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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.