Home / 21,853,877.40-32,800,644.90-11,078,674.20

Finding the Fourth Proportional to 21,853,877.40, 32,800,644.90 and 11,078,674.20

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Solution

The fourth proportional to 21,853,877.40, 32,800,644.90 and 11,078,674.20 is: 16,628,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,877.40 : 32,800,644.90 = 11,078,674.20 : x
  2. Step 2: Convert to fraction form
    21,853,877.40/32,800,644.90 = 11,078,674.20/x
  3. Step 3: Cross multiply
    21,853,877.40x = 32,800,644.90 × 11,078,674.20
  4. Step 4: Simplify right side
    21,853,877.40x = 363,387,658,396,991.56
  5. Step 5: Solve for x
    x = 363,387,658,396,991.56/21,853,877.40
  6. Step 6: Final answer
    x = 16,628,063.38

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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.