Home / 12,789,027.10-19,183,540.65-11,072,086.30

Finding the Fourth Proportional to 12,789,027.10, 19,183,540.65 and 11,072,086.30

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Solution

The fourth proportional to 12,789,027.10, 19,183,540.65 and 11,072,086.30 is: 16,608,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,027.10 : 19,183,540.65 = 11,072,086.30 : x
  2. Step 2: Convert to fraction form
    12,789,027.10/19,183,540.65 = 11,072,086.30/x
  3. Step 3: Cross multiply
    12,789,027.10x = 19,183,540.65 × 11,072,086.30
  4. Step 4: Simplify right side
    12,789,027.10x = 212,401,817,616,358.09
  5. Step 5: Solve for x
    x = 212,401,817,616,358.09/12,789,027.10
  6. Step 6: Final answer
    x = 16,608,129.45

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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.