Home / 20,439,906.50-30,644,725.70-12,350,988.12

Finding the Fourth Proportional to 20,439,906.50, 30,644,725.70 and 12,350,988.12

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Solution

The fourth proportional to 20,439,906.50, 30,644,725.70 and 12,350,988.12 is: 18,517,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,906.50 : 30,644,725.70 = 12,350,988.12 : x
  2. Step 2: Convert to fraction form
    20,439,906.50/30,644,725.70 = 12,350,988.12/x
  3. Step 3: Cross multiply
    20,439,906.50x = 30,644,725.70 × 12,350,988.12
  4. Step 4: Simplify right side
    20,439,906.50x = 378,492,643,061,358.62
  5. Step 5: Solve for x
    x = 378,492,643,061,358.62/20,439,906.50
  6. Step 6: Final answer
    x = 18,517,337.30

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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.