Home / 21,919,231.36-32,891,836-12,211,969.44

Finding the Fourth Proportional to 21,919,231.36, 32,891,836 and 12,211,969.44

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Solution

The fourth proportional to 21,919,231.36, 32,891,836 and 12,211,969.44 is: 18,325,190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,231.36 : 32,891,836 = 12,211,969.44 : x
  2. Step 2: Convert to fraction form
    21,919,231.36/32,891,836 = 12,211,969.44/x
  3. Step 3: Cross multiply
    21,919,231.36x = 32,891,836 × 12,211,969.44
  4. Step 4: Simplify right side
    21,919,231.36x = 401,674,096,057,491.81
  5. Step 5: Solve for x
    x = 401,674,096,057,491.81/21,919,231.36
  6. Step 6: Final answer
    x = 18,325,190.76

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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.