Home / 13,356,105.31-18,436,172.87-8,126,725.87

Finding the Fourth Proportional to 13,356,105.31, 18,436,172.87 and 8,126,725.87

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Solution

The fourth proportional to 13,356,105.31, 18,436,172.87 and 8,126,725.87 is: 11,217,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356,105.31 : 18,436,172.87 = 8,126,725.87 : x
  2. Step 2: Convert to fraction form
    13,356,105.31/18,436,172.87 = 8,126,725.87/x
  3. Step 3: Cross multiply
    13,356,105.31x = 18,436,172.87 × 8,126,725.87
  4. Step 4: Simplify right side
    13,356,105.31x = 149,825,723,006,421.16
  5. Step 5: Solve for x
    x = 149,825,723,006,421.16/13,356,105.31
  6. Step 6: Final answer
    x = 11,217,770.42

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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.