Home / 21,919,233.36-32,891,839-12,211,971.42

Finding the Fourth Proportional to 21,919,233.36, 32,891,839 and 12,211,971.42

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Solution

The fourth proportional to 21,919,233.36, 32,891,839 and 12,211,971.42 is: 18,325,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,233.36 : 32,891,839 = 12,211,971.42 : x
  2. Step 2: Convert to fraction form
    21,919,233.36/32,891,839 = 12,211,971.42/x
  3. Step 3: Cross multiply
    21,919,233.36x = 32,891,839 × 12,211,971.42
  4. Step 4: Simplify right side
    21,919,233.36x = 401,674,197,819,241.38
  5. Step 5: Solve for x
    x = 401,674,197,819,241.38/21,919,233.36
  6. Step 6: Final answer
    x = 18,325,193.73

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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.