Home / 12,311,998.80-18,467,998.20-12,144,037.20

Finding the Fourth Proportional to 12,311,998.80, 18,467,998.20 and 12,144,037.20

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Solution

The fourth proportional to 12,311,998.80, 18,467,998.20 and 12,144,037.20 is: 18,216,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311,998.80 : 18,467,998.20 = 12,144,037.20 : x
  2. Step 2: Convert to fraction form
    12,311,998.80/18,467,998.20 = 12,144,037.20/x
  3. Step 3: Cross multiply
    12,311,998.80x = 18,467,998.20 × 12,144,037.20
  4. Step 4: Simplify right side
    12,311,998.80x = 224,276,057,150,333.03
  5. Step 5: Solve for x
    x = 224,276,057,150,333.03/12,311,998.80
  6. Step 6: Final answer
    x = 18,216,055.80

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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.