Home / 74,704,861.53-111,314,623.32-66,555,213.66

Finding the Fourth Proportional to 74,704,861.53, 111,314,623.32 and 66,555,213.66

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Solution

The fourth proportional to 74,704,861.53, 111,314,623.32 and 66,555,213.66 is: 99,171,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704,861.53 : 111,314,623.32 = 66,555,213.66 : x
  2. Step 2: Convert to fraction form
    74,704,861.53/111,314,623.32 = 66,555,213.66/x
  3. Step 3: Cross multiply
    74,704,861.53x = 111,314,623.32 × 66,555,213.66
  4. Step 4: Simplify right side
    74,704,861.53x = 7,408,568,538,545,018
  5. Step 5: Solve for x
    x = 7,408,568,538,545,018/74,704,861.53
  6. Step 6: Final answer
    x = 99,171,170.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.