Home / 18,801,989.49-28,205,493.97-7,439,780.91

Finding the Fourth Proportional to 18,801,989.49, 28,205,493.97 and 7,439,780.91

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Solution

The fourth proportional to 18,801,989.49, 28,205,493.97 and 7,439,780.91 is: 11,160,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,989.49 : 28,205,493.97 = 7,439,780.91 : x
  2. Step 2: Convert to fraction form
    18,801,989.49/28,205,493.97 = 7,439,780.91/x
  3. Step 3: Cross multiply
    18,801,989.49x = 28,205,493.97 × 7,439,780.91
  4. Step 4: Simplify right side
    18,801,989.49x = 209,842,695,435,499.22
  5. Step 5: Solve for x
    x = 209,842,695,435,499.22/18,801,989.49
  6. Step 6: Final answer
    x = 11,160,664.44

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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.