Home / 80,906,997.60-121,360,496.40-32,408,085.60

Finding the Fourth Proportional to 80,906,997.60, 121,360,496.40 and 32,408,085.60

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Solution

The fourth proportional to 80,906,997.60, 121,360,496.40 and 32,408,085.60 is: 48,612,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,906,997.60 : 121,360,496.40 = 32,408,085.60 : x
  2. Step 2: Convert to fraction form
    80,906,997.60/121,360,496.40 = 32,408,085.60/x
  3. Step 3: Cross multiply
    80,906,997.60x = 121,360,496.40 × 32,408,085.60
  4. Step 4: Simplify right side
    80,906,997.60x = 3,933,061,355,789,692
  5. Step 5: Solve for x
    x = 3,933,061,355,789,692/80,906,997.60
  6. Step 6: Final answer
    x = 48,612,128.40

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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.