Home / 278,802,109.04-418,133,629.92-82,026,363.40

Finding the Fourth Proportional to 278,802,109.04, 418,133,629.92 and 82,026,363.40

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Solution

The fourth proportional to 278,802,109.04, 418,133,629.92 and 82,026,363.40 is: 123,019,087.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,802,109.04 : 418,133,629.92 = 82,026,363.40 : x
  2. Step 2: Convert to fraction form
    278,802,109.04/418,133,629.92 = 82,026,363.40/x
  3. Step 3: Cross multiply
    278,802,109.04x = 418,133,629.92 × 82,026,363.40
  4. Step 4: Simplify right side
    278,802,109.04x = 34,297,981,077,579,036
  5. Step 5: Solve for x
    x = 34,297,981,077,579,036/278,802,109.04
  6. Step 6: Final answer
    x = 123,019,087.61

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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.