Home / 18,660,010.20-27,990,015.30-17,597,128.20

Finding the Fourth Proportional to 18,660,010.20, 27,990,015.30 and 17,597,128.20

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Solution

The fourth proportional to 18,660,010.20, 27,990,015.30 and 17,597,128.20 is: 26,395,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660,010.20 : 27,990,015.30 = 17,597,128.20 : x
  2. Step 2: Convert to fraction form
    18,660,010.20/27,990,015.30 = 17,597,128.20/x
  3. Step 3: Cross multiply
    18,660,010.20x = 27,990,015.30 × 17,597,128.20
  4. Step 4: Simplify right side
    18,660,010.20x = 492,543,887,554,061.44
  5. Step 5: Solve for x
    x = 492,543,887,554,061.44/18,660,010.20
  6. Step 6: Final answer
    x = 26,395,692.30

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Similar ratio
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1.5x scale

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.