Home / 20,131,330.53-27,781,555.73-11,429,325.57

Finding the Fourth Proportional to 20,131,330.53, 27,781,555.73 and 11,429,325.57

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Solution

The fourth proportional to 20,131,330.53, 27,781,555.73 and 11,429,325.57 is: 15,772,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,330.53 : 27,781,555.73 = 11,429,325.57 : x
  2. Step 2: Convert to fraction form
    20,131,330.53/27,781,555.73 = 11,429,325.57/x
  3. Step 3: Cross multiply
    20,131,330.53x = 27,781,555.73 × 11,429,325.57
  4. Step 4: Simplify right side
    20,131,330.53x = 317,524,445,222,122.44
  5. Step 5: Solve for x
    x = 317,524,445,222,122.44/20,131,330.53
  6. Step 6: Final answer
    x = 15,772,650.73

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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.