Home / 20,272,241.89-30,408,109.21-4,919,658.76

Finding the Fourth Proportional to 20,272,241.89, 30,408,109.21 and 4,919,658.76

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Solution

The fourth proportional to 20,272,241.89, 30,408,109.21 and 4,919,658.76 is: 7,379,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272,241.89 : 30,408,109.21 = 4,919,658.76 : x
  2. Step 2: Convert to fraction form
    20,272,241.89/30,408,109.21 = 4,919,658.76/x
  3. Step 3: Cross multiply
    20,272,241.89x = 30,408,109.21 × 4,919,658.76
  4. Step 4: Simplify right side
    20,272,241.89x = 149,597,520,850,013.19
  5. Step 5: Solve for x
    x = 149,597,520,850,013.19/20,272,241.89
  6. Step 6: Final answer
    x = 7,379,426.59

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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.