Home / 20,910,554.70-31,353,653.19-8,116,112.62

Finding the Fourth Proportional to 20,910,554.70, 31,353,653.19 and 8,116,112.62

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Solution

The fourth proportional to 20,910,554.70, 31,353,653.19 and 8,116,112.62 is: 12,169,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910,554.70 : 31,353,653.19 = 8,116,112.62 : x
  2. Step 2: Convert to fraction form
    20,910,554.70/31,353,653.19 = 8,116,112.62/x
  3. Step 3: Cross multiply
    20,910,554.70x = 31,353,653.19 × 8,116,112.62
  4. Step 4: Simplify right side
    20,910,554.70x = 254,469,780,338,462.28
  5. Step 5: Solve for x
    x = 254,469,780,338,462.28/20,910,554.70
  6. Step 6: Final answer
    x = 12,169,441.89

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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.