Home / 18,129,874.23-27,191,858.85-7,346,739.51

Finding the Fourth Proportional to 18,129,874.23, 27,191,858.85 and 7,346,739.51

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Solution

The fourth proportional to 18,129,874.23, 27,191,858.85 and 7,346,739.51 is: 11,018,912.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129,874.23 : 27,191,858.85 = 7,346,739.51 : x
  2. Step 2: Convert to fraction form
    18,129,874.23/27,191,858.85 = 7,346,739.51/x
  3. Step 3: Cross multiply
    18,129,874.23x = 27,191,858.85 × 7,346,739.51
  4. Step 4: Simplify right side
    18,129,874.23x = 199,771,503,763,638.16
  5. Step 5: Solve for x
    x = 199,771,503,763,638.16/18,129,874.23
  6. Step 6: Final answer
    x = 11,018,912.83

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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.