Home / 20,540,509.32-30,816,523.62-8,253,100.92

Finding the Fourth Proportional to 20,540,509.32, 30,816,523.62 and 8,253,100.92

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Solution

The fourth proportional to 20,540,509.32, 30,816,523.62 and 8,253,100.92 is: 12,381,965.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540,509.32 : 30,816,523.62 = 8,253,100.92 : x
  2. Step 2: Convert to fraction form
    20,540,509.32/30,816,523.62 = 8,253,100.92/x
  3. Step 3: Cross multiply
    20,540,509.32x = 30,816,523.62 × 8,253,100.92
  4. Step 4: Simplify right side
    20,540,509.32x = 254,331,879,439,423.75
  5. Step 5: Solve for x
    x = 254,331,879,439,423.75/20,540,509.32
  6. Step 6: Final answer
    x = 12,381,965.58

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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.