Home / 12,591,108.30-18,886,662.45-8,056,145.10

Finding the Fourth Proportional to 12,591,108.30, 18,886,662.45 and 8,056,145.10

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Solution

The fourth proportional to 12,591,108.30, 18,886,662.45 and 8,056,145.10 is: 12,084,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,108.30 : 18,886,662.45 = 8,056,145.10 : x
  2. Step 2: Convert to fraction form
    12,591,108.30/18,886,662.45 = 8,056,145.10/x
  3. Step 3: Cross multiply
    12,591,108.30x = 18,886,662.45 × 8,056,145.10
  4. Step 4: Simplify right side
    12,591,108.30x = 152,153,693,151,921.47
  5. Step 5: Solve for x
    x = 152,153,693,151,921.47/12,591,108.30
  6. Step 6: Final answer
    x = 12,084,217.65

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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.