Home / 12,951,213.20-19,426,819.80-12,398,339.60

Finding the Fourth Proportional to 12,951,213.20, 19,426,819.80 and 12,398,339.60

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Solution

The fourth proportional to 12,951,213.20, 19,426,819.80 and 12,398,339.60 is: 18,597,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951,213.20 : 19,426,819.80 = 12,398,339.60 : x
  2. Step 2: Convert to fraction form
    12,951,213.20/19,426,819.80 = 12,398,339.60/x
  3. Step 3: Cross multiply
    12,951,213.20x = 19,426,819.80 × 12,398,339.60
  4. Step 4: Simplify right side
    12,951,213.20x = 240,860,309,228,404.09
  5. Step 5: Solve for x
    x = 240,860,309,228,404.09/12,951,213.20
  6. Step 6: Final answer
    x = 18,597,509.40

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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.