Home / 66,279,504.33-99,424,899.09-20,231,716.32

Finding the Fourth Proportional to 66,279,504.33, 99,424,899.09 and 20,231,716.32

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Solution

The fourth proportional to 66,279,504.33, 99,424,899.09 and 20,231,716.32 is: 30,349,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,279,504.33 : 99,424,899.09 = 20,231,716.32 : x
  2. Step 2: Convert to fraction form
    66,279,504.33/99,424,899.09 = 20,231,716.32/x
  3. Step 3: Cross multiply
    66,279,504.33x = 99,424,899.09 × 20,231,716.32
  4. Step 4: Simplify right side
    66,279,504.33x = 2,011,536,353,533,506.25
  5. Step 5: Solve for x
    x = 2,011,536,353,533,506.25/66,279,504.33
  6. Step 6: Final answer
    x = 30,349,296.87

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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.