Home / 685,256,850,885.15-945,677,132,993.73-376,619,149,726.08

Finding the Fourth Proportional to 685,256,850,885.15, 945,677,132,993.73 and 376,619,149,726.08

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Solution

The fourth proportional to 685,256,850,885.15, 945,677,132,993.73 and 376,619,149,726.08 is: 519,746,890,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,256,850,885.15 : 945,677,132,993.73 = 376,619,149,726.08 : x
  2. Step 2: Convert to fraction form
    685,256,850,885.15/945,677,132,993.73 = 376,619,149,726.08/x
  3. Step 3: Cross multiply
    685,256,850,885.15x = 945,677,132,993.73 × 376,619,149,726.08
  4. Step 4: Simplify right side
    685,256,850,885.15x = 356,160,117,743,495,686,389,760
  5. Step 5: Solve for x
    x = 356,160,117,743,495,686,389,760/685,256,850,885.15
  6. Step 6: Final answer
    x = 519,746,890,940.88

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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.