Home / 13,279,793.60-19,929,021.60-8,499,108.80

Finding the Fourth Proportional to 13,279,793.60, 19,929,021.60 and 8,499,108.80

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Solution

The fourth proportional to 13,279,793.60, 19,929,021.60 and 8,499,108.80 is: 12,754,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279,793.60 : 19,929,021.60 = 8,499,108.80 : x
  2. Step 2: Convert to fraction form
    13,279,793.60/19,929,021.60 = 8,499,108.80/x
  3. Step 3: Cross multiply
    13,279,793.60x = 19,929,021.60 × 8,499,108.80
  4. Step 4: Simplify right side
    13,279,793.60x = 169,378,922,855,950.09
  5. Step 5: Solve for x
    x = 169,378,922,855,950.09/13,279,793.60
  6. Step 6: Final answer
    x = 12,754,635.20

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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.