Home / 393,277,309,682.34-542,716,911,510.40-219,664,982,772.93

Finding the Fourth Proportional to 393,277,309,682.34, 542,716,911,510.40 and 219,664,982,772.93

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Solution

The fourth proportional to 393,277,309,682.34, 542,716,911,510.40 and 219,664,982,772.93 is: 303,134,450,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,277,309,682.34 : 542,716,911,510.40 = 219,664,982,772.93 : x
  2. Step 2: Convert to fraction form
    393,277,309,682.34/542,716,911,510.40 = 219,664,982,772.93/x
  3. Step 3: Cross multiply
    393,277,309,682.34x = 542,716,911,510.40 × 219,664,982,772.93
  4. Step 4: Simplify right side
    393,277,309,682.34x = 119,215,901,017,509,793,366,016
  5. Step 5: Solve for x
    x = 119,215,901,017,509,793,366,016/393,277,309,682.34
  6. Step 6: Final answer
    x = 303,134,450,125.80

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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.