Home / 18,805,655.10-25,940,808.90-11,825,285.10

Finding the Fourth Proportional to 18,805,655.10, 25,940,808.90 and 11,825,285.10

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Solution

The fourth proportional to 18,805,655.10, 25,940,808.90 and 11,825,285.10 is: 16,311,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,655.10 : 25,940,808.90 = 11,825,285.10 : x
  2. Step 2: Convert to fraction form
    18,805,655.10/25,940,808.90 = 11,825,285.10/x
  3. Step 3: Cross multiply
    18,805,655.10x = 25,940,808.90 × 11,825,285.10
  4. Step 4: Simplify right side
    18,805,655.10x = 306,757,460,967,117.38
  5. Step 5: Solve for x
    x = 306,757,460,967,117.38/18,805,655.10
  6. Step 6: Final answer
    x = 16,311,979.53

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.