Home / 18,214,638.40-27,313,663.20-8,112,059.20

Finding the Fourth Proportional to 18,214,638.40, 27,313,663.20 and 8,112,059.20

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Solution

The fourth proportional to 18,214,638.40, 27,313,663.20 and 8,112,059.20 is: 12,164,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214,638.40 : 27,313,663.20 = 8,112,059.20 : x
  2. Step 2: Convert to fraction form
    18,214,638.40/27,313,663.20 = 8,112,059.20/x
  3. Step 3: Cross multiply
    18,214,638.40x = 27,313,663.20 × 8,112,059.20
  4. Step 4: Simplify right side
    18,214,638.40x = 221,570,052,847,261.44
  5. Step 5: Solve for x
    x = 221,570,052,847,261.44/18,214,638.40
  6. Step 6: Final answer
    x = 12,164,394.81

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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.