Home / 18,756,911.49-28,134,842.34-5,978,183.01

Finding the Fourth Proportional to 18,756,911.49, 28,134,842.34 and 5,978,183.01

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Solution

The fourth proportional to 18,756,911.49, 28,134,842.34 and 5,978,183.01 is: 8,967,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,911.49 : 28,134,842.34 = 5,978,183.01 : x
  2. Step 2: Convert to fraction form
    18,756,911.49/28,134,842.34 = 5,978,183.01/x
  3. Step 3: Cross multiply
    18,756,911.49x = 28,134,842.34 × 5,978,183.01
  4. Step 4: Simplify right side
    18,756,911.49x = 168,195,236,466,016.62
  5. Step 5: Solve for x
    x = 168,195,236,466,016.62/18,756,911.49
  6. Step 6: Final answer
    x = 8,967,107.22

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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.