Home / 11,809,344.60-17,714,016.90-7,778,266.20

Finding the Fourth Proportional to 11,809,344.60, 17,714,016.90 and 7,778,266.20

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Solution

The fourth proportional to 11,809,344.60, 17,714,016.90 and 7,778,266.20 is: 11,667,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809,344.60 : 17,714,016.90 = 7,778,266.20 : x
  2. Step 2: Convert to fraction form
    11,809,344.60/17,714,016.90 = 7,778,266.20/x
  3. Step 3: Cross multiply
    11,809,344.60x = 17,714,016.90 × 7,778,266.20
  4. Step 4: Simplify right side
    11,809,344.60x = 137,784,338,919,498.77
  5. Step 5: Solve for x
    x = 137,784,338,919,498.77/11,809,344.60
  6. Step 6: Final answer
    x = 11,667,399.30

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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.