Home / 25,549,796.72-38,324,696.58-20,408,153.44

Finding the Fourth Proportional to 25,549,796.72, 38,324,696.58 and 20,408,153.44

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Solution

The fourth proportional to 25,549,796.72, 38,324,696.58 and 20,408,153.44 is: 30,612,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549,796.72 : 38,324,696.58 = 20,408,153.44 : x
  2. Step 2: Convert to fraction form
    25,549,796.72/38,324,696.58 = 20,408,153.44/x
  3. Step 3: Cross multiply
    25,549,796.72x = 38,324,696.58 × 20,408,153.44
  4. Step 4: Simplify right side
    25,549,796.72x = 782,136,288,346,083.25
  5. Step 5: Solve for x
    x = 782,136,288,346,083.25/25,549,796.72
  6. Step 6: Final answer
    x = 30,612,231.36

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Similar ratio
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1.5x scale

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.