Home / 20,833,556.65-31,218,952.21-18,563,147.21

Finding the Fourth Proportional to 20,833,556.65, 31,218,952.21 and 18,563,147.21

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Solution

The fourth proportional to 20,833,556.65, 31,218,952.21 and 18,563,147.21 is: 27,816,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,556.65 : 31,218,952.21 = 18,563,147.21 : x
  2. Step 2: Convert to fraction form
    20,833,556.65/31,218,952.21 = 18,563,147.21/x
  3. Step 3: Cross multiply
    20,833,556.65x = 31,218,952.21 × 18,563,147.21
  4. Step 4: Simplify right side
    20,833,556.65x = 579,522,005,576,635.50
  5. Step 5: Solve for x
    x = 579,522,005,576,635.50/20,833,556.65
  6. Step 6: Final answer
    x = 27,816,758.09

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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.