Home / 69,530,404.20-104,295,087.90-21,008,164.20

Finding the Fourth Proportional to 69,530,404.20, 104,295,087.90 and 21,008,164.20

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Solution

The fourth proportional to 69,530,404.20, 104,295,087.90 and 21,008,164.20 is: 31,512,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,530,404.20 : 104,295,087.90 = 21,008,164.20 : x
  2. Step 2: Convert to fraction form
    69,530,404.20/104,295,087.90 = 21,008,164.20/x
  3. Step 3: Cross multiply
    69,530,404.20x = 104,295,087.90 × 21,008,164.20
  4. Step 4: Simplify right side
    69,530,404.20x = 2,191,048,331,856,633.25
  5. Step 5: Solve for x
    x = 2,191,048,331,856,633.25/69,530,404.20
  6. Step 6: Final answer
    x = 31,512,089.67

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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.