Home / 12,199,989.64-18,300,115.86-3,680,399.92

Finding the Fourth Proportional to 12,199,989.64, 18,300,115.86 and 3,680,399.92

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Solution

The fourth proportional to 12,199,989.64, 18,300,115.86 and 3,680,399.92 is: 5,520,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,989.64 : 18,300,115.86 = 3,680,399.92 : x
  2. Step 2: Convert to fraction form
    12,199,989.64/18,300,115.86 = 3,680,399.92/x
  3. Step 3: Cross multiply
    12,199,989.64x = 18,300,115.86 × 3,680,399.92
  4. Step 4: Simplify right side
    12,199,989.64x = 67,351,744,947,134.73
  5. Step 5: Solve for x
    x = 67,351,744,947,134.73/12,199,989.64
  6. Step 6: Final answer
    x = 5,520,639.52

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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.