Home / 28,471,109.60-42,702,517.20-8,274,245.60

Finding the Fourth Proportional to 28,471,109.60, 42,702,517.20 and 8,274,245.60

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Solution

The fourth proportional to 28,471,109.60, 42,702,517.20 and 8,274,245.60 is: 12,410,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,109.60 : 42,702,517.20 = 8,274,245.60 : x
  2. Step 2: Convert to fraction form
    28,471,109.60/42,702,517.20 = 8,274,245.60/x
  3. Step 3: Cross multiply
    28,471,109.60x = 42,702,517.20 × 8,274,245.60
  4. Step 4: Simplify right side
    28,471,109.60x = 353,331,115,051,024.31
  5. Step 5: Solve for x
    x = 353,331,115,051,024.31/28,471,109.60
  6. Step 6: Final answer
    x = 12,410,163.14

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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.