Home / 202,145,940.96-278,961,398.31-109,326,448.69

Finding the Fourth Proportional to 202,145,940.96, 278,961,398.31 and 109,326,448.69

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Solution

The fourth proportional to 202,145,940.96, 278,961,398.31 and 109,326,448.69 is: 150,870,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,145,940.96 : 278,961,398.31 = 109,326,448.69 : x
  2. Step 2: Convert to fraction form
    202,145,940.96/278,961,398.31 = 109,326,448.69/x
  3. Step 3: Cross multiply
    202,145,940.96x = 278,961,398.31 × 109,326,448.69
  4. Step 4: Simplify right side
    202,145,940.96x = 30,497,858,998,828,868
  5. Step 5: Solve for x
    x = 30,497,858,998,828,868/202,145,940.96
  6. Step 6: Final answer
    x = 150,870,499.08

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