Home / 68,055,661.20-101,990,179.80-43,719,891.60

Finding the Fourth Proportional to 68,055,661.20, 101,990,179.80 and 43,719,891.60

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Solution

The fourth proportional to 68,055,661.20, 101,990,179.80 and 43,719,891.60 is: 65,519,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,055,661.20 : 101,990,179.80 = 43,719,891.60 : x
  2. Step 2: Convert to fraction form
    68,055,661.20/101,990,179.80 = 43,719,891.60/x
  3. Step 3: Cross multiply
    68,055,661.20x = 101,990,179.80 × 43,719,891.60
  4. Step 4: Simplify right side
    68,055,661.20x = 4,458,999,605,120,509.50
  5. Step 5: Solve for x
    x = 4,458,999,605,120,509.50/68,055,661.20
  6. Step 6: Final answer
    x = 65,519,892.49

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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.