Home / 257,792,198,797.38-355,737,205,017.72-142,042,480,959.38

Finding the Fourth Proportional to 257,792,198,797.38, 355,737,205,017.72 and 142,042,480,959.38

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Solution

The fourth proportional to 257,792,198,797.38, 355,737,205,017.72 and 142,042,480,959.38 is: 196,009,791,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792,198,797.38 : 355,737,205,017.72 = 142,042,480,959.38 : x
  2. Step 2: Convert to fraction form
    257,792,198,797.38/355,737,205,017.72 = 142,042,480,959.38/x
  3. Step 3: Cross multiply
    257,792,198,797.38x = 355,737,205,017.72 × 142,042,480,959.38
  4. Step 4: Simplify right side
    257,792,198,797.38x = 50,529,795,170,272,546,914,304
  5. Step 5: Solve for x
    x = 50,529,795,170,272,546,914,304/257,792,198,797.38
  6. Step 6: Final answer
    x = 196,009,791,630.62

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1.5x scale

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.