Home / 7,382,816.20-11,074,224.30-1,991,456.20

Finding the Fourth Proportional to 7,382,816.20, 11,074,224.30 and 1,991,456.20

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Solution

The fourth proportional to 7,382,816.20, 11,074,224.30 and 1,991,456.20 is: 2,987,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382,816.20 : 11,074,224.30 = 1,991,456.20 : x
  2. Step 2: Convert to fraction form
    7,382,816.20/11,074,224.30 = 1,991,456.20/x
  3. Step 3: Cross multiply
    7,382,816.20x = 11,074,224.30 × 1,991,456.20
  4. Step 4: Simplify right side
    7,382,816.20x = 22,053,832,642,425.66
  5. Step 5: Solve for x
    x = 22,053,832,642,425.66/7,382,816.20
  6. Step 6: Final answer
    x = 2,987,184.30

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Double scale
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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.