Home / 415,261,390.80-622,892,086.20-200,270,542.80

Finding the Fourth Proportional to 415,261,390.80, 622,892,086.20 and 200,270,542.80

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Solution

The fourth proportional to 415,261,390.80, 622,892,086.20 and 200,270,542.80 is: 300,405,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,261,390.80 : 622,892,086.20 = 200,270,542.80 : x
  2. Step 2: Convert to fraction form
    415,261,390.80/622,892,086.20 = 200,270,542.80/x
  3. Step 3: Cross multiply
    415,261,390.80x = 622,892,086.20 × 200,270,542.80
  4. Step 4: Simplify right side
    415,261,390.80x = 124,746,936,209,098,400
  5. Step 5: Solve for x
    x = 124,746,936,209,098,400/415,261,390.80
  6. Step 6: Final answer
    x = 300,405,814.20

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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.