Home / 18,974,538.12-28,467,128.10-7,622,958.36

Finding the Fourth Proportional to 18,974,538.12, 28,467,128.10 and 7,622,958.36

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Solution

The fourth proportional to 18,974,538.12, 28,467,128.10 and 7,622,958.36 is: 11,436,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974,538.12 : 28,467,128.10 = 7,622,958.36 : x
  2. Step 2: Convert to fraction form
    18,974,538.12/28,467,128.10 = 7,622,958.36/x
  3. Step 3: Cross multiply
    18,974,538.12x = 28,467,128.10 × 7,622,958.36
  4. Step 4: Simplify right side
    18,974,538.12x = 217,003,732,135,085.94
  5. Step 5: Solve for x
    x = 217,003,732,135,085.94/18,974,538.12
  6. Step 6: Final answer
    x = 11,436,575.20

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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.