Home / 20,416,843.46-28,166,390.89-12,152,271.61

Finding the Fourth Proportional to 20,416,843.46, 28,166,390.89 and 12,152,271.61

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Solution

The fourth proportional to 20,416,843.46, 28,166,390.89 and 12,152,271.61 is: 16,764,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416,843.46 : 28,166,390.89 = 12,152,271.61 : x
  2. Step 2: Convert to fraction form
    20,416,843.46/28,166,390.89 = 12,152,271.61/x
  3. Step 3: Cross multiply
    20,416,843.46x = 28,166,390.89 × 12,152,271.61
  4. Step 4: Simplify right side
    20,416,843.46x = 342,285,632,368,709.62
  5. Step 5: Solve for x
    x = 342,285,632,368,709.62/20,416,843.46
  6. Step 6: Final answer
    x = 16,764,865.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.