Home / 203,940,471.67-281,437,891.40-111,120,979.51

Finding the Fourth Proportional to 203,940,471.67, 281,437,891.40 and 111,120,979.51

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Solution

The fourth proportional to 203,940,471.67, 281,437,891.40 and 111,120,979.51 is: 153,346,973.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,940,471.67 : 281,437,891.40 = 111,120,979.51 : x
  2. Step 2: Convert to fraction form
    203,940,471.67/281,437,891.40 = 111,120,979.51/x
  3. Step 3: Cross multiply
    203,940,471.67x = 281,437,891.40 × 111,120,979.51
  4. Step 4: Simplify right side
    203,940,471.67x = 31,273,654,163,597,004
  5. Step 5: Solve for x
    x = 31,273,654,163,597,004/203,940,471.67
  6. Step 6: Final answer
    x = 153,346,973.79

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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.