Home / 168,404,543.40-252,606,815.10-82,198,252.20

Finding the Fourth Proportional to 168,404,543.40, 252,606,815.10 and 82,198,252.20

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Solution

The fourth proportional to 168,404,543.40, 252,606,815.10 and 82,198,252.20 is: 123,297,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404,543.40 : 252,606,815.10 = 82,198,252.20 : x
  2. Step 2: Convert to fraction form
    168,404,543.40/252,606,815.10 = 82,198,252.20/x
  3. Step 3: Cross multiply
    168,404,543.40x = 252,606,815.10 × 82,198,252.20
  4. Step 4: Simplify right side
    168,404,543.40x = 20,763,838,695,028,568
  5. Step 5: Solve for x
    x = 20,763,838,695,028,568/168,404,543.40
  6. Step 6: Final answer
    x = 123,297,378.30

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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.