Home / 20,131,329.53-27,781,554.35-11,429,324.57

Finding the Fourth Proportional to 20,131,329.53, 27,781,554.35 and 11,429,324.57

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Solution

The fourth proportional to 20,131,329.53, 27,781,554.35 and 11,429,324.57 is: 15,772,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,329.53 : 27,781,554.35 = 11,429,324.57 : x
  2. Step 2: Convert to fraction form
    20,131,329.53/27,781,554.35 = 11,429,324.57/x
  3. Step 3: Cross multiply
    20,131,329.53x = 27,781,554.35 × 11,429,324.57
  4. Step 4: Simplify right side
    20,131,329.53x = 317,524,401,725,245.38
  5. Step 5: Solve for x
    x = 317,524,401,725,245.38/20,131,329.53
  6. Step 6: Final answer
    x = 15,772,649.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.