Home / 18,904,780.80-28,363,119.78-6,765,968.52

Finding the Fourth Proportional to 18,904,780.80, 28,363,119.78 and 6,765,968.52

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Solution

The fourth proportional to 18,904,780.80, 28,363,119.78 and 6,765,968.52 is: 10,151,081.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904,780.80 : 28,363,119.78 = 6,765,968.52 : x
  2. Step 2: Convert to fraction form
    18,904,780.80/28,363,119.78 = 6,765,968.52/x
  3. Step 3: Cross multiply
    18,904,780.80x = 28,363,119.78 × 6,765,968.52
  4. Step 4: Simplify right side
    18,904,780.80x = 191,903,975,560,469.31
  5. Step 5: Solve for x
    x = 191,903,975,560,469.31/18,904,780.80
  6. Step 6: Final answer
    x = 10,151,081.76

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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.