Home / 685,256,850,860.13-945,677,132,959.23-376,619,149,701.12

Finding the Fourth Proportional to 685,256,850,860.13, 945,677,132,959.23 and 376,619,149,701.12

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Solution

The fourth proportional to 685,256,850,860.13, 945,677,132,959.23 and 376,619,149,701.12 is: 519,746,890,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,256,850,860.13 : 945,677,132,959.23 = 376,619,149,701.12 : x
  2. Step 2: Convert to fraction form
    685,256,850,860.13/945,677,132,959.23 = 376,619,149,701.12/x
  3. Step 3: Cross multiply
    685,256,850,860.13x = 945,677,132,959.23 × 376,619,149,701.12
  4. Step 4: Simplify right side
    685,256,850,860.13x = 356,160,117,706,898,202,951,680
  5. Step 5: Solve for x
    x = 356,160,117,706,898,202,951,680/685,256,850,860.13
  6. Step 6: Final answer
    x = 519,746,890,906.45

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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.