Home / 20,129,294.80-30,193,942.20-12,476,544.40

Finding the Fourth Proportional to 20,129,294.80, 30,193,942.20 and 12,476,544.40

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Solution

The fourth proportional to 20,129,294.80, 30,193,942.20 and 12,476,544.40 is: 18,714,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,294.80 : 30,193,942.20 = 12,476,544.40 : x
  2. Step 2: Convert to fraction form
    20,129,294.80/30,193,942.20 = 12,476,544.40/x
  3. Step 3: Cross multiply
    20,129,294.80x = 30,193,942.20 × 12,476,544.40
  4. Step 4: Simplify right side
    20,129,294.80x = 376,716,060,469,333.69
  5. Step 5: Solve for x
    x = 376,716,060,469,333.69/20,129,294.80
  6. Step 6: Final answer
    x = 18,714,816.60

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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.