Home / 20,777,500.89-31,166,251.61-5,631,432.39

Finding the Fourth Proportional to 20,777,500.89, 31,166,251.61 and 5,631,432.39

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Solution

The fourth proportional to 20,777,500.89, 31,166,251.61 and 5,631,432.39 is: 8,447,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,500.89 : 31,166,251.61 = 5,631,432.39 : x
  2. Step 2: Convert to fraction form
    20,777,500.89/31,166,251.61 = 5,631,432.39/x
  3. Step 3: Cross multiply
    20,777,500.89x = 31,166,251.61 × 5,631,432.39
  4. Step 4: Simplify right side
    20,777,500.89x = 175,510,638,763,286.47
  5. Step 5: Solve for x
    x = 175,510,638,763,286.47/20,777,500.89
  6. Step 6: Final answer
    x = 8,447,148.66

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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.