Home / 21,991,333.20-32,986,999.80-18,590,110.80

Finding the Fourth Proportional to 21,991,333.20, 32,986,999.80 and 18,590,110.80

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Solution

The fourth proportional to 21,991,333.20, 32,986,999.80 and 18,590,110.80 is: 27,885,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,333.20 : 32,986,999.80 = 18,590,110.80 : x
  2. Step 2: Convert to fraction form
    21,991,333.20/32,986,999.80 = 18,590,110.80/x
  3. Step 3: Cross multiply
    21,991,333.20x = 32,986,999.80 × 18,590,110.80
  4. Step 4: Simplify right side
    21,991,333.20x = 613,231,981,241,577.88
  5. Step 5: Solve for x
    x = 613,231,981,241,577.88/21,991,333.20
  6. Step 6: Final answer
    x = 27,885,166.20

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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.