Home / 393,277,310,053.71-542,716,912,024.08-219,664,983,145.39

Finding the Fourth Proportional to 393,277,310,053.71, 542,716,912,024.08 and 219,664,983,145.39

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Solution

The fourth proportional to 393,277,310,053.71, 542,716,912,024.08 and 219,664,983,145.39 is: 303,134,450,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,310,053.71 : 542,716,912,024.08 = 219,664,983,145.39 : x
  2. Step 2: Convert to fraction form
    393,277,310,053.71/542,716,912,024.08 = 219,664,983,145.39/x
  3. Step 3: Cross multiply
    393,277,310,053.71x = 542,716,912,024.08 × 219,664,983,145.39
  4. Step 4: Simplify right side
    393,277,310,053.71x = 119,215,901,332,487,645,691,904
  5. Step 5: Solve for x
    x = 119,215,901,332,487,645,691,904/393,277,310,053.71
  6. Step 6: Final answer
    x = 303,134,450,640.46

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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.