Home / 393,277,309,682.25-542,716,911,510.25-219,664,982,772.83

Finding the Fourth Proportional to 393,277,309,682.25, 542,716,911,510.25 and 219,664,982,772.83

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Solution

The fourth proportional to 393,277,309,682.25, 542,716,911,510.25 and 219,664,982,772.83 is: 303,134,450,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,309,682.25 : 542,716,911,510.25 = 219,664,982,772.83 : x
  2. Step 2: Convert to fraction form
    393,277,309,682.25/542,716,911,510.25 = 219,664,982,772.83/x
  3. Step 3: Cross multiply
    393,277,309,682.25x = 542,716,911,510.25 × 219,664,982,772.83
  4. Step 4: Simplify right side
    393,277,309,682.25x = 119,215,901,017,422,568,620,032
  5. Step 5: Solve for x
    x = 119,215,901,017,422,568,620,032/393,277,309,682.25
  6. Step 6: Final answer
    x = 303,134,450,125.65

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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.