Home / 168,345,643.20-252,378,496.80-71,375,812.80

Finding the Fourth Proportional to 168,345,643.20, 252,378,496.80 and 71,375,812.80

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Solution

The fourth proportional to 168,345,643.20, 252,378,496.80 and 71,375,812.80 is: 107,004,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,345,643.20 : 252,378,496.80 = 71,375,812.80 : x
  2. Step 2: Convert to fraction form
    168,345,643.20/252,378,496.80 = 71,375,812.80/x
  3. Step 3: Cross multiply
    168,345,643.20x = 252,378,496.80 × 71,375,812.80
  4. Step 4: Simplify right side
    168,345,643.20x = 18,013,720,342,342,200
  5. Step 5: Solve for x
    x = 18,013,720,342,342,200/168,345,643.20
  6. Step 6: Final answer
    x = 107,004,375.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.