Home / 18,147,079.80-27,220,619.70-11,722,548.60

Finding the Fourth Proportional to 18,147,079.80, 27,220,619.70 and 11,722,548.60

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Solution

The fourth proportional to 18,147,079.80, 27,220,619.70 and 11,722,548.60 is: 17,583,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147,079.80 : 27,220,619.70 = 11,722,548.60 : x
  2. Step 2: Convert to fraction form
    18,147,079.80/27,220,619.70 = 11,722,548.60/x
  3. Step 3: Cross multiply
    18,147,079.80x = 27,220,619.70 × 11,722,548.60
  4. Step 4: Simplify right side
    18,147,079.80x = 319,095,037,355,367.38
  5. Step 5: Solve for x
    x = 319,095,037,355,367.38/18,147,079.80
  6. Step 6: Final answer
    x = 17,583,822.90

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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.