Home / 20,644,909.20-30,924,790.20-12,099,344.40

Finding the Fourth Proportional to 20,644,909.20, 30,924,790.20 and 12,099,344.40

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Solution

The fourth proportional to 20,644,909.20, 30,924,790.20 and 12,099,344.40 is: 18,124,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,909.20 : 30,924,790.20 = 12,099,344.40 : x
  2. Step 2: Convert to fraction form
    20,644,909.20/30,924,790.20 = 12,099,344.40/x
  3. Step 3: Cross multiply
    20,644,909.20x = 30,924,790.20 × 12,099,344.40
  4. Step 4: Simplify right side
    20,644,909.20x = 374,169,687,127,544.88
  5. Step 5: Solve for x
    x = 374,169,687,127,544.88/20,644,909.20
  6. Step 6: Final answer
    x = 18,124,065.53

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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.