Home / 10,371,315.20-15,528,979.20-8,131,827.20

Finding the Fourth Proportional to 10,371,315.20, 15,528,979.20 and 8,131,827.20

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Solution

The fourth proportional to 10,371,315.20, 15,528,979.20 and 8,131,827.20 is: 12,175,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371,315.20 : 15,528,979.20 = 8,131,827.20 : x
  2. Step 2: Convert to fraction form
    10,371,315.20/15,528,979.20 = 8,131,827.20/x
  3. Step 3: Cross multiply
    10,371,315.20x = 15,528,979.20 × 8,131,827.20
  4. Step 4: Simplify right side
    10,371,315.20x = 126,278,975,446,794.23
  5. Step 5: Solve for x
    x = 126,278,975,446,794.23/10,371,315.20
  6. Step 6: Final answer
    x = 12,175,791.88

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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.