Home / 13,419,680.70-20,105,901.45-11,530,112.70

Finding the Fourth Proportional to 13,419,680.70, 20,105,901.45 and 11,530,112.70

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Solution

The fourth proportional to 13,419,680.70, 20,105,901.45 and 11,530,112.70 is: 17,274,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,680.70 : 20,105,901.45 = 11,530,112.70 : x
  2. Step 2: Convert to fraction form
    13,419,680.70/20,105,901.45 = 11,530,112.70/x
  3. Step 3: Cross multiply
    13,419,680.70x = 20,105,901.45 × 11,530,112.70
  4. Step 4: Simplify right side
    13,419,680.70x = 231,823,309,653,593.41
  5. Step 5: Solve for x
    x = 231,823,309,653,593.41/13,419,680.70
  6. Step 6: Final answer
    x = 17,274,875.23

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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.