Home / 68,954,605.20-103,431,907.80-30,575,379.60

Finding the Fourth Proportional to 68,954,605.20, 103,431,907.80 and 30,575,379.60

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Solution

The fourth proportional to 68,954,605.20, 103,431,907.80 and 30,575,379.60 is: 45,863,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954,605.20 : 103,431,907.80 = 30,575,379.60 : x
  2. Step 2: Convert to fraction form
    68,954,605.20/103,431,907.80 = 30,575,379.60/x
  3. Step 3: Cross multiply
    68,954,605.20x = 103,431,907.80 × 30,575,379.60
  4. Step 4: Simplify right side
    68,954,605.20x = 3,162,469,843,737,201
  5. Step 5: Solve for x
    x = 3,162,469,843,737,201/68,954,605.20
  6. Step 6: Final answer
    x = 45,863,069.40

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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.