Home / 12,489,175.20-18,705,769.20-10,249,687.20

Finding the Fourth Proportional to 12,489,175.20, 18,705,769.20 and 10,249,687.20

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Solution

The fourth proportional to 12,489,175.20, 18,705,769.20 and 10,249,687.20 is: 15,351,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,175.20 : 18,705,769.20 = 10,249,687.20 : x
  2. Step 2: Convert to fraction form
    12,489,175.20/18,705,769.20 = 10,249,687.20/x
  3. Step 3: Cross multiply
    12,489,175.20x = 18,705,769.20 × 10,249,687.20
  4. Step 4: Simplify right side
    12,489,175.20x = 191,728,283,135,394.22
  5. Step 5: Solve for x
    x = 191,728,283,135,394.22/12,489,175.20
  6. Step 6: Final answer
    x = 15,351,556.85

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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.