Home / 203,986,627.20-281,493,333.12-111,165,142.08

Finding the Fourth Proportional to 203,986,627.20, 281,493,333.12 and 111,165,142.08

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Solution

The fourth proportional to 203,986,627.20, 281,493,333.12 and 111,165,142.08 is: 153,403,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,986,627.20 : 281,493,333.12 = 111,165,142.08 : x
  2. Step 2: Convert to fraction form
    203,986,627.20/281,493,333.12 = 111,165,142.08/x
  3. Step 3: Cross multiply
    203,986,627.20x = 281,493,333.12 × 111,165,142.08
  4. Step 4: Simplify right side
    203,986,627.20x = 31,292,246,370,857,568
  5. Step 5: Solve for x
    x = 31,292,246,370,857,568/203,986,627.20
  6. Step 6: Final answer
    x = 153,403,420.61

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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.