Home / 415,260,660.80-622,890,991.20-200,269,812.80

Finding the Fourth Proportional to 415,260,660.80, 622,890,991.20 and 200,269,812.80

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Solution

The fourth proportional to 415,260,660.80, 622,890,991.20 and 200,269,812.80 is: 300,404,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,260,660.80 : 622,890,991.20 = 200,269,812.80 : x
  2. Step 2: Convert to fraction form
    415,260,660.80/622,890,991.20 = 200,269,812.80/x
  3. Step 3: Cross multiply
    415,260,660.80x = 622,890,991.20 × 200,269,812.80
  4. Step 4: Simplify right side
    415,260,660.80x = 124,746,262,202,430,464
  5. Step 5: Solve for x
    x = 124,746,262,202,430,464/415,260,660.80
  6. Step 6: Final answer
    x = 300,404,719.20

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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.