Home / 20,186,187.30-30,243,195.45-12,284,556.30

Finding the Fourth Proportional to 20,186,187.30, 30,243,195.45 and 12,284,556.30

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Solution

The fourth proportional to 20,186,187.30, 30,243,195.45 and 12,284,556.30 is: 18,404,874.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,187.30 : 30,243,195.45 = 12,284,556.30 : x
  2. Step 2: Convert to fraction form
    20,186,187.30/30,243,195.45 = 12,284,556.30/x
  3. Step 3: Cross multiply
    20,186,187.30x = 30,243,195.45 × 12,284,556.30
  4. Step 4: Simplify right side
    20,186,187.30x = 371,524,237,197,428.88
  5. Step 5: Solve for x
    x = 371,524,237,197,428.88/20,186,187.30
  6. Step 6: Final answer
    x = 18,404,874.17

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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.