Home / 18,721,927.70-28,082,891.55-10,631,777.30

Finding the Fourth Proportional to 18,721,927.70, 28,082,891.55 and 10,631,777.30

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Solution

The fourth proportional to 18,721,927.70, 28,082,891.55 and 10,631,777.30 is: 15,947,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,927.70 : 28,082,891.55 = 10,631,777.30 : x
  2. Step 2: Convert to fraction form
    18,721,927.70/28,082,891.55 = 10,631,777.30/x
  3. Step 3: Cross multiply
    18,721,927.70x = 28,082,891.55 × 10,631,777.30
  4. Step 4: Simplify right side
    18,721,927.70x = 298,571,048,899,651.88
  5. Step 5: Solve for x
    x = 298,571,048,899,651.88/18,721,927.70
  6. Step 6: Final answer
    x = 15,947,665.95

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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.