Home / 7,144,805,087.47-9,859,839,195.01-3,972,920,902.59

Finding the Fourth Proportional to 7,144,805,087.47, 9,859,839,195.01 and 3,972,920,902.59

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Solution

The fourth proportional to 7,144,805,087.47, 9,859,839,195.01 and 3,972,920,902.59 is: 5,482,635,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,805,087.47 : 9,859,839,195.01 = 3,972,920,902.59 : x
  2. Step 2: Convert to fraction form
    7,144,805,087.47/9,859,839,195.01 = 3,972,920,902.59/x
  3. Step 3: Cross multiply
    7,144,805,087.47x = 9,859,839,195.01 × 3,972,920,902.59
  4. Step 4: Simplify right side
    7,144,805,087.47x = 39,172,361,234,021,457,920
  5. Step 5: Solve for x
    x = 39,172,361,234,021,457,920/7,144,805,087.47
  6. Step 6: Final answer
    x = 5,482,635,390.95

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Double scale
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1.5x scale

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.