Home / 20,733,634-28,618,105.72-12,034,609.20

Finding the Fourth Proportional to 20,733,634, 28,618,105.72 and 12,034,609.20

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Solution

The fourth proportional to 20,733,634, 28,618,105.72 and 12,034,609.20 is: 16,611,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,634 : 28,618,105.72 = 12,034,609.20 : x
  2. Step 2: Convert to fraction form
    20,733,634/28,618,105.72 = 12,034,609.20/x
  3. Step 3: Cross multiply
    20,733,634x = 28,618,105.72 × 12,034,609.20
  4. Step 4: Simplify right side
    20,733,634x = 344,407,718,384,484.56
  5. Step 5: Solve for x
    x = 344,407,718,384,484.56/20,733,634
  6. Step 6: Final answer
    x = 16,611,063.86

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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.