Home / 205,100,605.20-307,650,907.80-197,934,243.60

Finding the Fourth Proportional to 205,100,605.20, 307,650,907.80 and 197,934,243.60

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Solution

The fourth proportional to 205,100,605.20, 307,650,907.80 and 197,934,243.60 is: 296,901,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,100,605.20 : 307,650,907.80 = 197,934,243.60 : x
  2. Step 2: Convert to fraction form
    205,100,605.20/307,650,907.80 = 197,934,243.60/x
  3. Step 3: Cross multiply
    205,100,605.20x = 307,650,907.80 × 197,934,243.60
  4. Step 4: Simplify right side
    205,100,605.20x = 60,894,649,728,246,344
  5. Step 5: Solve for x
    x = 60,894,649,728,246,344/205,100,605.20
  6. Step 6: Final answer
    x = 296,901,365.40

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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.