Home / 640,215,792.97-883,010,339.22-551,059,479.34

Finding the Fourth Proportional to 640,215,792.97, 883,010,339.22 and 551,059,479.34

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Solution

The fourth proportional to 640,215,792.97, 883,010,339.22 and 551,059,479.34 is: 760,042,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,215,792.97 : 883,010,339.22 = 551,059,479.34 : x
  2. Step 2: Convert to fraction form
    640,215,792.97/883,010,339.22 = 551,059,479.34/x
  3. Step 3: Cross multiply
    640,215,792.97x = 883,010,339.22 × 551,059,479.34
  4. Step 4: Simplify right side
    640,215,792.97x = 486,591,217,782,410,048
  5. Step 5: Solve for x
    x = 486,591,217,782,410,048/640,215,792.97
  6. Step 6: Final answer
    x = 760,042,509.30

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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.