Home / 140,800,025.12-194,304,466.37-78,080,539.28

Finding the Fourth Proportional to 140,800,025.12, 194,304,466.37 and 78,080,539.28

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Solution

The fourth proportional to 140,800,025.12, 194,304,466.37 and 78,080,539.28 is: 107,751,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,800,025.12 : 194,304,466.37 = 78,080,539.28 : x
  2. Step 2: Convert to fraction form
    140,800,025.12/194,304,466.37 = 78,080,539.28/x
  3. Step 3: Cross multiply
    140,800,025.12x = 194,304,466.37 × 78,080,539.28
  4. Step 4: Simplify right side
    140,800,025.12x = 15,171,397,517,905,904
  5. Step 5: Solve for x
    x = 15,171,397,517,905,904/140,800,025.12
  6. Step 6: Final answer
    x = 107,751,383.61

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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.