Home / 20,733,620-28,618,086.40-12,034,595.20

Finding the Fourth Proportional to 20,733,620, 28,618,086.40 and 12,034,595.20

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Solution

The fourth proportional to 20,733,620, 28,618,086.40 and 12,034,595.20 is: 16,611,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,620 : 28,618,086.40 = 12,034,595.20 : x
  2. Step 2: Convert to fraction form
    20,733,620/28,618,086.40 = 12,034,595.20/x
  3. Step 3: Cross multiply
    20,733,620x = 28,618,086.40 × 12,034,595.20
  4. Step 4: Simplify right side
    20,733,620x = 344,407,085,222,625.25
  5. Step 5: Solve for x
    x = 344,407,085,222,625.25/20,733,620
  6. Step 6: Final answer
    x = 16,611,044.54

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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.