Home / 5,147,405.72-7,103,428.26-2,855,566.48

Finding the Fourth Proportional to 5,147,405.72, 7,103,428.26 and 2,855,566.48

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Solution

The fourth proportional to 5,147,405.72, 7,103,428.26 and 2,855,566.48 is: 3,940,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,405.72 : 7,103,428.26 = 2,855,566.48 : x
  2. Step 2: Convert to fraction form
    5,147,405.72/7,103,428.26 = 2,855,566.48/x
  3. Step 3: Cross multiply
    5,147,405.72x = 7,103,428.26 × 2,855,566.48
  4. Step 4: Simplify right side
    5,147,405.72x = 20,284,311,632,340.72
  5. Step 5: Solve for x
    x = 20,284,311,632,340.72/5,147,405.72
  6. Step 6: Final answer
    x = 3,940,686.38

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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.