Home / 20,353,489.45-30,505,221.64-9,408,874.63

Finding the Fourth Proportional to 20,353,489.45, 30,505,221.64 and 9,408,874.63

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Solution

The fourth proportional to 20,353,489.45, 30,505,221.64 and 9,408,874.63 is: 14,101,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353,489.45 : 30,505,221.64 = 9,408,874.63 : x
  2. Step 2: Convert to fraction form
    20,353,489.45/30,505,221.64 = 9,408,874.63/x
  3. Step 3: Cross multiply
    20,353,489.45x = 30,505,221.64 × 9,408,874.63
  4. Step 4: Simplify right side
    20,353,489.45x = 287,019,805,971,123
  5. Step 5: Solve for x
    x = 287,019,805,971,123/20,353,489.45
  6. Step 6: Final answer
    x = 14,101,749.32

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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.