Home / 7,144,805,076.34-9,859,839,179.65-3,972,920,891.47

Finding the Fourth Proportional to 7,144,805,076.34, 9,859,839,179.65 and 3,972,920,891.47

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Solution

The fourth proportional to 7,144,805,076.34, 9,859,839,179.65 and 3,972,920,891.47 is: 5,482,635,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,805,076.34 : 9,859,839,179.65 = 3,972,920,891.47 : x
  2. Step 2: Convert to fraction form
    7,144,805,076.34/9,859,839,179.65 = 3,972,920,891.47/x
  3. Step 3: Cross multiply
    7,144,805,076.34x = 9,859,839,179.65 × 3,972,920,891.47
  4. Step 4: Simplify right side
    7,144,805,076.34x = 39,172,361,063,365,910,528
  5. Step 5: Solve for x
    x = 39,172,361,063,365,910,528/7,144,805,076.34
  6. Step 6: Final answer
    x = 5,482,635,375.61

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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.