Home / 79,056,861.87-109,082,965.50-49,671,168.56

Finding the Fourth Proportional to 79,056,861.87, 109,082,965.50 and 49,671,168.56

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Solution

The fourth proportional to 79,056,861.87, 109,082,965.50 and 49,671,168.56 is: 68,536,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,056,861.87 : 109,082,965.50 = 49,671,168.56 : x
  2. Step 2: Convert to fraction form
    79,056,861.87/109,082,965.50 = 49,671,168.56/x
  3. Step 3: Cross multiply
    79,056,861.87x = 109,082,965.50 × 49,671,168.56
  4. Step 4: Simplify right side
    79,056,861.87x = 5,418,278,365,829,750
  5. Step 5: Solve for x
    x = 5,418,278,365,829,750/79,056,861.87
  6. Step 6: Final answer
    x = 68,536,471.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.