Home / 5,149,665.72-7,106,566.26-2,857,828.20

Finding the Fourth Proportional to 5,149,665.72, 7,106,566.26 and 2,857,828.20

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Solution

The fourth proportional to 5,149,665.72, 7,106,566.26 and 2,857,828.20 is: 3,943,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149,665.72 : 7,106,566.26 = 2,857,828.20 : x
  2. Step 2: Convert to fraction form
    5,149,665.72/7,106,566.26 = 2,857,828.20/x
  3. Step 3: Cross multiply
    5,149,665.72x = 7,106,566.26 × 2,857,828.20
  4. Step 4: Simplify right side
    5,149,665.72x = 20,309,345,462,996.53
  5. Step 5: Solve for x
    x = 20,309,345,462,996.53/5,149,665.72
  6. Step 6: Final answer
    x = 3,943,818.21

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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.