Home / 20,089,628.70-30,134,443.05-13,287,183.90

Finding the Fourth Proportional to 20,089,628.70, 30,134,443.05 and 13,287,183.90

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Solution

The fourth proportional to 20,089,628.70, 30,134,443.05 and 13,287,183.90 is: 19,930,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089,628.70 : 30,134,443.05 = 13,287,183.90 : x
  2. Step 2: Convert to fraction form
    20,089,628.70/30,134,443.05 = 13,287,183.90/x
  3. Step 3: Cross multiply
    20,089,628.70x = 30,134,443.05 × 13,287,183.90
  4. Step 4: Simplify right side
    20,089,628.70x = 400,401,886,529,426.94
  5. Step 5: Solve for x
    x = 400,401,886,529,426.94/20,089,628.70
  6. Step 6: Final answer
    x = 19,930,775.85

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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.