Home / 3,179,769.76-4,388,079.12-1,821,648.16

Finding the Fourth Proportional to 3,179,769.76, 4,388,079.12 and 1,821,648.16

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Solution

The fourth proportional to 3,179,769.76, 4,388,079.12 and 1,821,648.16 is: 2,513,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,769.76 : 4,388,079.12 = 1,821,648.16 : x
  2. Step 2: Convert to fraction form
    3,179,769.76/4,388,079.12 = 1,821,648.16/x
  3. Step 3: Cross multiply
    3,179,769.76x = 4,388,079.12 × 1,821,648.16
  4. Step 4: Simplify right side
    3,179,769.76x = 7,993,536,254,882.42
  5. Step 5: Solve for x
    x = 7,993,536,254,882.42/3,179,769.76
  6. Step 6: Final answer
    x = 2,513,872.66

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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.