Home / 20,910,554.82-31,353,653.37-8,116,112.75

Finding the Fourth Proportional to 20,910,554.82, 31,353,653.37 and 8,116,112.75

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Solution

The fourth proportional to 20,910,554.82, 31,353,653.37 and 8,116,112.75 is: 12,169,442.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910,554.82 : 31,353,653.37 = 8,116,112.75 : x
  2. Step 2: Convert to fraction form
    20,910,554.82/31,353,653.37 = 8,116,112.75/x
  3. Step 3: Cross multiply
    20,910,554.82x = 31,353,653.37 × 8,116,112.75
  4. Step 4: Simplify right side
    20,910,554.82x = 254,469,785,875,337.47
  5. Step 5: Solve for x
    x = 254,469,785,875,337.47/20,910,554.82
  6. Step 6: Final answer
    x = 12,169,442.09

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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.