Home / 18,778,965.21-28,170,357.39-6,481,328.04

Finding the Fourth Proportional to 18,778,965.21, 28,170,357.39 and 6,481,328.04

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Solution

The fourth proportional to 18,778,965.21, 28,170,357.39 and 6,481,328.04 is: 9,722,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,965.21 : 28,170,357.39 = 6,481,328.04 : x
  2. Step 2: Convert to fraction form
    18,778,965.21/28,170,357.39 = 6,481,328.04/x
  3. Step 3: Cross multiply
    18,778,965.21x = 28,170,357.39 × 6,481,328.04
  4. Step 4: Simplify right side
    18,778,965.21x = 182,581,327,248,628.22
  5. Step 5: Solve for x
    x = 182,581,327,248,628.22/18,778,965.21
  6. Step 6: Final answer
    x = 9,722,651.13

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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.