Home / 12,444,905.40-18,667,358.10-11,689,078.20

Finding the Fourth Proportional to 12,444,905.40, 18,667,358.10 and 11,689,078.20

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Solution

The fourth proportional to 12,444,905.40, 18,667,358.10 and 11,689,078.20 is: 17,533,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444,905.40 : 18,667,358.10 = 11,689,078.20 : x
  2. Step 2: Convert to fraction form
    12,444,905.40/18,667,358.10 = 11,689,078.20/x
  3. Step 3: Cross multiply
    12,444,905.40x = 18,667,358.10 × 11,689,078.20
  4. Step 4: Simplify right side
    12,444,905.40x = 218,204,208,618,303.44
  5. Step 5: Solve for x
    x = 218,204,208,618,303.44/12,444,905.40
  6. Step 6: Final answer
    x = 17,533,617.30

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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.