Home / 257,792,198,784.21-355,737,204,999.65-142,042,480,946.38

Finding the Fourth Proportional to 257,792,198,784.21, 355,737,204,999.65 and 142,042,480,946.38

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Solution

The fourth proportional to 257,792,198,784.21, 355,737,204,999.65 and 142,042,480,946.38 is: 196,009,791,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792,198,784.21 : 355,737,204,999.65 = 142,042,480,946.38 : x
  2. Step 2: Convert to fraction form
    257,792,198,784.21/355,737,204,999.65 = 142,042,480,946.38/x
  3. Step 3: Cross multiply
    257,792,198,784.21x = 355,737,204,999.65 × 142,042,480,946.38
  4. Step 4: Simplify right side
    257,792,198,784.21x = 50,529,795,163,081,270,099,968
  5. Step 5: Solve for x
    x = 50,529,795,163,081,270,099,968/257,792,198,784.21
  6. Step 6: Final answer
    x = 196,009,791,612.73

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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.