Home / 257,792,198,785.21-355,737,205,001.03-142,042,480,947.38

Finding the Fourth Proportional to 257,792,198,785.21, 355,737,205,001.03 and 142,042,480,947.38

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Solution

The fourth proportional to 257,792,198,785.21, 355,737,205,001.03 and 142,042,480,947.38 is: 196,009,791,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792,198,785.21 : 355,737,205,001.03 = 142,042,480,947.38 : x
  2. Step 2: Convert to fraction form
    257,792,198,785.21/355,737,205,001.03 = 142,042,480,947.38/x
  3. Step 3: Cross multiply
    257,792,198,785.21x = 355,737,205,001.03 × 142,042,480,947.38
  4. Step 4: Simplify right side
    257,792,198,785.21x = 50,529,795,163,633,022,402,560
  5. Step 5: Solve for x
    x = 50,529,795,163,633,022,402,560/257,792,198,785.21
  6. Step 6: Final answer
    x = 196,009,791,614.11

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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.