Home / 18,979,990.52-26,192,401.11-10,278,172.67

Finding the Fourth Proportional to 18,979,990.52, 26,192,401.11 and 10,278,172.67

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Solution

The fourth proportional to 18,979,990.52, 26,192,401.11 and 10,278,172.67 is: 14,183,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,990.52 : 26,192,401.11 = 10,278,172.67 : x
  2. Step 2: Convert to fraction form
    18,979,990.52/26,192,401.11 = 10,278,172.67/x
  3. Step 3: Cross multiply
    18,979,990.52x = 26,192,401.11 × 10,278,172.67
  4. Step 4: Simplify right side
    18,979,990.52x = 269,210,021,119,517.62
  5. Step 5: Solve for x
    x = 269,210,021,119,517.62/18,979,990.52
  6. Step 6: Final answer
    x = 14,183,885.97

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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.