Home / 400,193,327.70-552,284,052.57-221,577,215.04

Finding the Fourth Proportional to 400,193,327.70, 552,284,052.57 and 221,577,215.04

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Solution

The fourth proportional to 400,193,327.70, 552,284,052.57 and 221,577,215.04 is: 305,786,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,193,327.70 : 552,284,052.57 = 221,577,215.04 : x
  2. Step 2: Convert to fraction form
    400,193,327.70/552,284,052.57 = 221,577,215.04/x
  3. Step 3: Cross multiply
    400,193,327.70x = 552,284,052.57 × 221,577,215.04
  4. Step 4: Simplify right side
    400,193,327.70x = 122,373,562,279,465,568
  5. Step 5: Solve for x
    x = 122,373,562,279,465,568/400,193,327.70
  6. Step 6: Final answer
    x = 305,786,113.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.