Home / 18,684,485.40-28,013,277.18-11,481,136.56

Finding the Fourth Proportional to 18,684,485.40, 28,013,277.18 and 11,481,136.56

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Solution

The fourth proportional to 18,684,485.40, 28,013,277.18 and 11,481,136.56 is: 17,213,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,485.40 : 28,013,277.18 = 11,481,136.56 : x
  2. Step 2: Convert to fraction form
    18,684,485.40/28,013,277.18 = 11,481,136.56/x
  3. Step 3: Cross multiply
    18,684,485.40x = 28,013,277.18 × 11,481,136.56
  4. Step 4: Simplify right side
    18,684,485.40x = 321,624,260,796,711.69
  5. Step 5: Solve for x
    x = 321,624,260,796,711.69/18,684,485.40
  6. Step 6: Final answer
    x = 17,213,439.60

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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.