Home / 10,921,611.70-16,394,859.15-6,436,414.90

Finding the Fourth Proportional to 10,921,611.70, 16,394,859.15 and 6,436,414.90

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Solution

The fourth proportional to 10,921,611.70, 16,394,859.15 and 6,436,414.90 is: 9,661,954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,611.70 : 16,394,859.15 = 6,436,414.90 : x
  2. Step 2: Convert to fraction form
    10,921,611.70/16,394,859.15 = 6,436,414.90/x
  3. Step 3: Cross multiply
    10,921,611.70x = 16,394,859.15 × 6,436,414.90
  4. Step 4: Simplify right side
    10,921,611.70x = 105,524,115,716,461.34
  5. Step 5: Solve for x
    x = 105,524,115,716,461.34/10,921,611.70
  6. Step 6: Final answer
    x = 9,661,954.54

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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.