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Finding the Fourth Proportional to 14,981,991.40, 22,472,987.10 and 8,611,892.20

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Solution

The fourth proportional to 14,981,991.40, 22,472,987.10 and 8,611,892.20 is: 12,917,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981,991.40 : 22,472,987.10 = 8,611,892.20 : x
  2. Step 2: Convert to fraction form
    14,981,991.40/22,472,987.10 = 8,611,892.20/x
  3. Step 3: Cross multiply
    14,981,991.40x = 22,472,987.10 × 8,611,892.20
  4. Step 4: Simplify right side
    14,981,991.40x = 193,534,942,317,190.62
  5. Step 5: Solve for x
    x = 193,534,942,317,190.62/14,981,991.40
  6. Step 6: Final answer
    x = 12,917,838.30

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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.