Home / 14,485,819.20-21,731,353.20-7,279,216.80

Finding the Fourth Proportional to 14,485,819.20, 21,731,353.20 and 7,279,216.80

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Solution

The fourth proportional to 14,485,819.20, 21,731,353.20 and 7,279,216.80 is: 10,920,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485,819.20 : 21,731,353.20 = 7,279,216.80 : x
  2. Step 2: Convert to fraction form
    14,485,819.20/21,731,353.20 = 7,279,216.80/x
  3. Step 3: Cross multiply
    14,485,819.20x = 21,731,353.20 × 7,279,216.80
  4. Step 4: Simplify right side
    14,485,819.20x = 158,187,231,300,173.75
  5. Step 5: Solve for x
    x = 158,187,231,300,173.75/14,485,819.20
  6. Step 6: Final answer
    x = 10,920,143.98

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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.