Home / 18,189,947.20-27,284,920.80-8,624,009.20

Finding the Fourth Proportional to 18,189,947.20, 27,284,920.80 and 8,624,009.20

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Solution

The fourth proportional to 18,189,947.20, 27,284,920.80 and 8,624,009.20 is: 12,936,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189,947.20 : 27,284,920.80 = 8,624,009.20 : x
  2. Step 2: Convert to fraction form
    18,189,947.20/27,284,920.80 = 8,624,009.20/x
  3. Step 3: Cross multiply
    18,189,947.20x = 27,284,920.80 × 8,624,009.20
  4. Step 4: Simplify right side
    18,189,947.20x = 235,305,408,000,471.34
  5. Step 5: Solve for x
    x = 235,305,408,000,471.34/18,189,947.20
  6. Step 6: Final answer
    x = 12,936,013.80

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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.