Home / 203,633,205.40-305,449,808.10-74,245,036.60

Finding the Fourth Proportional to 203,633,205.40, 305,449,808.10 and 74,245,036.60

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Solution

The fourth proportional to 203,633,205.40, 305,449,808.10 and 74,245,036.60 is: 111,367,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,633,205.40 : 305,449,808.10 = 74,245,036.60 : x
  2. Step 2: Convert to fraction form
    203,633,205.40/305,449,808.10 = 74,245,036.60/x
  3. Step 3: Cross multiply
    203,633,205.40x = 305,449,808.10 × 74,245,036.60
  4. Step 4: Simplify right side
    203,633,205.40x = 22,678,132,181,847,476
  5. Step 5: Solve for x
    x = 22,678,132,181,847,476/203,633,205.40
  6. Step 6: Final answer
    x = 111,367,554.90

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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.