Home / 21,796,668-30,080,334.96-12,138,876

Finding the Fourth Proportional to 21,796,668, 30,080,334.96 and 12,138,876

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Solution

The fourth proportional to 21,796,668, 30,080,334.96 and 12,138,876 is: 16,752,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796,668 : 30,080,334.96 = 12,138,876 : x
  2. Step 2: Convert to fraction form
    21,796,668/30,080,334.96 = 12,138,876/x
  3. Step 3: Cross multiply
    21,796,668x = 30,080,334.96 × 12,138,876
  4. Step 4: Simplify right side
    21,796,668x = 365,141,456,117,905
  5. Step 5: Solve for x
    x = 365,141,456,117,905/21,796,668
  6. Step 6: Final answer
    x = 16,752,168.55

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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.