Home / 393,277,310,053.89-542,716,912,024.28-219,664,983,145.54

Finding the Fourth Proportional to 393,277,310,053.89, 542,716,912,024.28 and 219,664,983,145.54

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Solution

The fourth proportional to 393,277,310,053.89, 542,716,912,024.28 and 219,664,983,145.54 is: 303,134,450,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,310,053.89 : 542,716,912,024.28 = 219,664,983,145.54 : x
  2. Step 2: Convert to fraction form
    393,277,310,053.89/542,716,912,024.28 = 219,664,983,145.54/x
  3. Step 3: Cross multiply
    393,277,310,053.89x = 542,716,912,024.28 × 219,664,983,145.54
  4. Step 4: Simplify right side
    393,277,310,053.89x = 119,215,901,332,612,988,272,640
  5. Step 5: Solve for x
    x = 119,215,901,332,612,988,272,640/393,277,310,053.89
  6. Step 6: Final answer
    x = 303,134,450,640.64

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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.