Home / 18,783,043.70-28,174,565.55-9,193,486.10

Finding the Fourth Proportional to 18,783,043.70, 28,174,565.55 and 9,193,486.10

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Solution

The fourth proportional to 18,783,043.70, 28,174,565.55 and 9,193,486.10 is: 13,790,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,043.70 : 28,174,565.55 = 9,193,486.10 : x
  2. Step 2: Convert to fraction form
    18,783,043.70/28,174,565.55 = 9,193,486.10/x
  3. Step 3: Cross multiply
    18,783,043.70x = 28,174,565.55 × 9,193,486.10
  4. Step 4: Simplify right side
    18,783,043.70x = 259,022,476,757,463.84
  5. Step 5: Solve for x
    x = 259,022,476,757,463.84/18,783,043.70
  6. Step 6: Final answer
    x = 13,790,229.15

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Double scale
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Similar ratio
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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.