Home / 15,083,442.32-20,815,619.10-8,557,346.84

Finding the Fourth Proportional to 15,083,442.32, 20,815,619.10 and 8,557,346.84

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Solution

The fourth proportional to 15,083,442.32, 20,815,619.10 and 8,557,346.84 is: 11,809,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083,442.32 : 20,815,619.10 = 8,557,346.84 : x
  2. Step 2: Convert to fraction form
    15,083,442.32/20,815,619.10 = 8,557,346.84/x
  3. Step 3: Cross multiply
    15,083,442.32x = 20,815,619.10 × 8,557,346.84
  4. Step 4: Simplify right side
    15,083,442.32x = 178,126,472,328,028.66
  5. Step 5: Solve for x
    x = 178,126,472,328,028.66/15,083,442.32
  6. Step 6: Final answer
    x = 11,809,404.55

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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.