Home / 685,256,850,888.65-945,677,132,998.55-376,619,149,729.58

Finding the Fourth Proportional to 685,256,850,888.65, 945,677,132,998.55 and 376,619,149,729.58

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Solution

The fourth proportional to 685,256,850,888.65, 945,677,132,998.55 and 376,619,149,729.58 is: 519,746,890,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,256,850,888.65 : 945,677,132,998.55 = 376,619,149,729.58 : x
  2. Step 2: Convert to fraction form
    685,256,850,888.65/945,677,132,998.55 = 376,619,149,729.58/x
  3. Step 3: Cross multiply
    685,256,850,888.65x = 945,677,132,998.55 × 376,619,149,729.58
  4. Step 4: Simplify right side
    685,256,850,888.65x = 356,160,117,748,620,857,442,304
  5. Step 5: Solve for x
    x = 356,160,117,748,620,857,442,304/685,256,850,888.65
  6. Step 6: Final answer
    x = 519,746,890,945.71

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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.