Home / 12,984,362.70-19,476,544.05-12,431,489.10

Finding the Fourth Proportional to 12,984,362.70, 19,476,544.05 and 12,431,489.10

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Solution

The fourth proportional to 12,984,362.70, 19,476,544.05 and 12,431,489.10 is: 18,647,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,362.70 : 19,476,544.05 = 12,431,489.10 : x
  2. Step 2: Convert to fraction form
    12,984,362.70/19,476,544.05 = 12,431,489.10/x
  3. Step 3: Cross multiply
    12,984,362.70x = 19,476,544.05 × 12,431,489.10
  4. Step 4: Simplify right side
    12,984,362.70x = 242,122,445,063,244.84
  5. Step 5: Solve for x
    x = 242,122,445,063,244.84/12,984,362.70
  6. Step 6: Final answer
    x = 18,647,233.65

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Double scale
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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.