Home / 278,718,895.14-418,051,327.70-84,632,016.38

Finding the Fourth Proportional to 278,718,895.14, 418,051,327.70 and 84,632,016.38

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Solution

The fourth proportional to 278,718,895.14, 418,051,327.70 and 84,632,016.38 is: 126,939,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,718,895.14 : 418,051,327.70 = 84,632,016.38 : x
  2. Step 2: Convert to fraction form
    278,718,895.14/418,051,327.70 = 84,632,016.38/x
  3. Step 3: Cross multiply
    278,718,895.14x = 418,051,327.70 × 84,632,016.38
  4. Step 4: Simplify right side
    278,718,895.14x = 35,380,526,813,587,144
  5. Step 5: Solve for x
    x = 35,380,526,813,587,144/278,718,895.14
  6. Step 6: Final answer
    x = 126,939,821.56

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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.