Home / 20,522,520.76-30,722,409.06-12,410,947.48

Finding the Fourth Proportional to 20,522,520.76, 30,722,409.06 and 12,410,947.48

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Solution

The fourth proportional to 20,522,520.76, 30,722,409.06 and 12,410,947.48 is: 18,579,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,520.76 : 30,722,409.06 = 12,410,947.48 : x
  2. Step 2: Convert to fraction form
    20,522,520.76/30,722,409.06 = 12,410,947.48/x
  3. Step 3: Cross multiply
    20,522,520.76x = 30,722,409.06 × 12,410,947.48
  4. Step 4: Simplify right side
    20,522,520.76x = 381,294,205,302,736.19
  5. Step 5: Solve for x
    x = 381,294,205,302,736.19/20,522,520.76
  6. Step 6: Final answer
    x = 18,579,306.60

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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.