Home / 7,144,805,084.19-9,859,839,190.48-3,972,920,899.31

Finding the Fourth Proportional to 7,144,805,084.19, 9,859,839,190.48 and 3,972,920,899.31

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Solution

The fourth proportional to 7,144,805,084.19, 9,859,839,190.48 and 3,972,920,899.31 is: 5,482,635,386.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,805,084.19 : 9,859,839,190.48 = 3,972,920,899.31 : x
  2. Step 2: Convert to fraction form
    7,144,805,084.19/9,859,839,190.48 = 3,972,920,899.31/x
  3. Step 3: Cross multiply
    7,144,805,084.19x = 9,859,839,190.48 × 3,972,920,899.31
  4. Step 4: Simplify right side
    7,144,805,084.19x = 39,172,361,183,687,122,944
  5. Step 5: Solve for x
    x = 39,172,361,183,687,122,944/7,144,805,084.19
  6. Step 6: Final answer
    x = 5,482,635,386.43

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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.