Home / 393,277,310,049.97-542,716,912,019.07-219,664,983,141.68

Finding the Fourth Proportional to 393,277,310,049.97, 542,716,912,019.07 and 219,664,983,141.68

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Solution

The fourth proportional to 393,277,310,049.97, 542,716,912,019.07 and 219,664,983,141.68 is: 303,134,450,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,310,049.97 : 542,716,912,019.07 = 219,664,983,141.68 : x
  2. Step 2: Convert to fraction form
    393,277,310,049.97/542,716,912,019.07 = 219,664,983,141.68/x
  3. Step 3: Cross multiply
    393,277,310,049.97x = 542,716,912,019.07 × 219,664,983,141.68
  4. Step 4: Simplify right side
    393,277,310,049.97x = 119,215,901,329,373,643,407,360
  5. Step 5: Solve for x
    x = 119,215,901,329,373,643,407,360/393,277,310,049.97
  6. Step 6: Final answer
    x = 303,134,450,635.42

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Why These Related Problems?

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