Home / 12,478,546.20-18,717,819.30-8,368,735.80

Finding the Fourth Proportional to 12,478,546.20, 18,717,819.30 and 8,368,735.80

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Solution

The fourth proportional to 12,478,546.20, 18,717,819.30 and 8,368,735.80 is: 12,553,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,546.20 : 18,717,819.30 = 8,368,735.80 : x
  2. Step 2: Convert to fraction form
    12,478,546.20/18,717,819.30 = 8,368,735.80/x
  3. Step 3: Cross multiply
    12,478,546.20x = 18,717,819.30 × 8,368,735.80
  4. Step 4: Simplify right side
    12,478,546.20x = 156,644,484,473,840.94
  5. Step 5: Solve for x
    x = 156,644,484,473,840.94/12,478,546.20
  6. Step 6: Final answer
    x = 12,553,103.70

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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.