Home / 12,391,036.80-18,586,555.20-11,009,290.20

Finding the Fourth Proportional to 12,391,036.80, 18,586,555.20 and 11,009,290.20

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Solution

The fourth proportional to 12,391,036.80, 18,586,555.20 and 11,009,290.20 is: 16,513,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391,036.80 : 18,586,555.20 = 11,009,290.20 : x
  2. Step 2: Convert to fraction form
    12,391,036.80/18,586,555.20 = 11,009,290.20/x
  3. Step 3: Cross multiply
    12,391,036.80x = 18,586,555.20 × 11,009,290.20
  4. Step 4: Simplify right side
    12,391,036.80x = 204,624,780,015,119.03
  5. Step 5: Solve for x
    x = 204,624,780,015,119.03/12,391,036.80
  6. Step 6: Final answer
    x = 16,513,935.30

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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.