Home / 287,975,288.43-431,982,087.08-101,206,642.97

Finding the Fourth Proportional to 287,975,288.43, 431,982,087.08 and 101,206,642.97

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Solution

The fourth proportional to 287,975,288.43, 431,982,087.08 and 101,206,642.97 is: 151,816,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,975,288.43 : 431,982,087.08 = 101,206,642.97 : x
  2. Step 2: Convert to fraction form
    287,975,288.43/431,982,087.08 = 101,206,642.97/x
  3. Step 3: Cross multiply
    287,975,288.43x = 431,982,087.08 × 101,206,642.97
  4. Step 4: Simplify right side
    287,975,288.43x = 43,719,456,856,541,008
  5. Step 5: Solve for x
    x = 43,719,456,856,541,008/287,975,288.43
  6. Step 6: Final answer
    x = 151,816,696.13

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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.