Home / 18,647,961.65-27,991,030.28-15,399,147.94

Finding the Fourth Proportional to 18,647,961.65, 27,991,030.28 and 15,399,147.94

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Solution

The fourth proportional to 18,647,961.65, 27,991,030.28 and 15,399,147.94 is: 23,114,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647,961.65 : 27,991,030.28 = 15,399,147.94 : x
  2. Step 2: Convert to fraction form
    18,647,961.65/27,991,030.28 = 15,399,147.94/x
  3. Step 3: Cross multiply
    18,647,961.65x = 27,991,030.28 × 15,399,147.94
  4. Step 4: Simplify right side
    18,647,961.65x = 431,038,016,127,766.31
  5. Step 5: Solve for x
    x = 431,038,016,127,766.31/18,647,961.65
  6. Step 6: Final answer
    x = 23,114,484.27

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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.