Home / 275,319,912.80-412,979,869.20-207,295,464.80

Finding the Fourth Proportional to 275,319,912.80, 412,979,869.20 and 207,295,464.80

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Solution

The fourth proportional to 275,319,912.80, 412,979,869.20 and 207,295,464.80 is: 310,943,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,319,912.80 : 412,979,869.20 = 207,295,464.80 : x
  2. Step 2: Convert to fraction form
    275,319,912.80/412,979,869.20 = 207,295,464.80/x
  3. Step 3: Cross multiply
    275,319,912.80x = 412,979,869.20 × 207,295,464.80
  4. Step 4: Simplify right side
    275,319,912.80x = 85,608,853,938,857,200
  5. Step 5: Solve for x
    x = 85,608,853,938,857,200/275,319,912.80
  6. Step 6: Final answer
    x = 310,943,197.20

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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.