Home / 269,490,812.39-404,268,489.48-82,720,291.12

Finding the Fourth Proportional to 269,490,812.39, 404,268,489.48 and 82,720,291.12

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Solution

The fourth proportional to 269,490,812.39, 404,268,489.48 and 82,720,291.12 is: 124,090,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,490,812.39 : 404,268,489.48 = 82,720,291.12 : x
  2. Step 2: Convert to fraction form
    269,490,812.39/404,268,489.48 = 82,720,291.12/x
  3. Step 3: Cross multiply
    269,490,812.39x = 404,268,489.48 × 82,720,291.12
  4. Step 4: Simplify right side
    269,490,812.39x = 33,441,207,140,428,260
  5. Step 5: Solve for x
    x = 33,441,207,140,428,260/269,490,812.39
  6. Step 6: Final answer
    x = 124,090,342.24

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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.