Home / 20,458,484.72-28,232,308.32-11,166,121.52

Finding the Fourth Proportional to 20,458,484.72, 28,232,308.32 and 11,166,121.52

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Solution

The fourth proportional to 20,458,484.72, 28,232,308.32 and 11,166,121.52 is: 15,409,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,484.72 : 28,232,308.32 = 11,166,121.52 : x
  2. Step 2: Convert to fraction form
    20,458,484.72/28,232,308.32 = 11,166,121.52/x
  3. Step 3: Cross multiply
    20,458,484.72x = 28,232,308.32 × 11,166,121.52
  4. Step 4: Simplify right side
    20,458,484.72x = 315,245,385,491,227.06
  5. Step 5: Solve for x
    x = 315,245,385,491,227.06/20,458,484.72
  6. Step 6: Final answer
    x = 15,409,029.06

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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.