Home / 7,982,821.21-11,981,802.12-4,940,985.82

Finding the Fourth Proportional to 7,982,821.21, 11,981,802.12 and 4,940,985.82

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Solution

The fourth proportional to 7,982,821.21, 11,981,802.12 and 4,940,985.82 is: 7,416,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982,821.21 : 11,981,802.12 = 4,940,985.82 : x
  2. Step 2: Convert to fraction form
    7,982,821.21/11,981,802.12 = 4,940,985.82/x
  3. Step 3: Cross multiply
    7,982,821.21x = 11,981,802.12 × 4,940,985.82
  4. Step 4: Simplify right side
    7,982,821.21x = 59,201,914,372,965.94
  5. Step 5: Solve for x
    x = 59,201,914,372,965.94/7,982,821.21
  6. Step 6: Final answer
    x = 7,416,164.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.