Home / 18,216,716.40-27,328,136.40-5,438,512.80

Finding the Fourth Proportional to 18,216,716.40, 27,328,136.40 and 5,438,512.80

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Solution

The fourth proportional to 18,216,716.40, 27,328,136.40 and 5,438,512.80 is: 8,158,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,716.40 : 27,328,136.40 = 5,438,512.80 : x
  2. Step 2: Convert to fraction form
    18,216,716.40/27,328,136.40 = 5,438,512.80/x
  3. Step 3: Cross multiply
    18,216,716.40x = 27,328,136.40 × 5,438,512.80
  4. Step 4: Simplify right side
    18,216,716.40x = 148,624,419,611,545.91
  5. Step 5: Solve for x
    x = 148,624,419,611,545.91/18,216,716.40
  6. Step 6: Final answer
    x = 8,158,683.29

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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.