Home / 12,446,443.40-18,669,665.10-11,690,616.20

Finding the Fourth Proportional to 12,446,443.40, 18,669,665.10 and 11,690,616.20

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Solution

The fourth proportional to 12,446,443.40, 18,669,665.10 and 11,690,616.20 is: 17,535,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,443.40 : 18,669,665.10 = 11,690,616.20 : x
  2. Step 2: Convert to fraction form
    12,446,443.40/18,669,665.10 = 11,690,616.20/x
  3. Step 3: Cross multiply
    12,446,443.40x = 18,669,665.10 × 11,690,616.20
  4. Step 4: Simplify right side
    12,446,443.40x = 218,259,889,266,634.62
  5. Step 5: Solve for x
    x = 218,259,889,266,634.62/12,446,443.40
  6. Step 6: Final answer
    x = 17,535,924.30

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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.