Home / 20,491,186.01-30,728,029.28-11,861,243.28

Finding the Fourth Proportional to 20,491,186.01, 30,728,029.28 and 11,861,243.28

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Solution

The fourth proportional to 20,491,186.01, 30,728,029.28 and 11,861,243.28 is: 17,786,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491,186.01 : 30,728,029.28 = 11,861,243.28 : x
  2. Step 2: Convert to fraction form
    20,491,186.01/30,728,029.28 = 11,861,243.28/x
  3. Step 3: Cross multiply
    20,491,186.01x = 30,728,029.28 × 11,861,243.28
  4. Step 4: Simplify right side
    20,491,186.01x = 364,472,630,745,737
  5. Step 5: Solve for x
    x = 364,472,630,745,737/20,491,186.01
  6. Step 6: Final answer
    x = 17,786,800.17

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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.