Home / 12,096,979.70-18,145,469.55-3,121,531.70

Finding the Fourth Proportional to 12,096,979.70, 18,145,469.55 and 3,121,531.70

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Solution

The fourth proportional to 12,096,979.70, 18,145,469.55 and 3,121,531.70 is: 4,682,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,979.70 : 18,145,469.55 = 3,121,531.70 : x
  2. Step 2: Convert to fraction form
    12,096,979.70/18,145,469.55 = 3,121,531.70/x
  3. Step 3: Cross multiply
    12,096,979.70x = 18,145,469.55 × 3,121,531.70
  4. Step 4: Simplify right side
    12,096,979.70x = 56,641,658,411,709.74
  5. Step 5: Solve for x
    x = 56,641,658,411,709.74/12,096,979.70
  6. Step 6: Final answer
    x = 4,682,297.55

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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.