Home / 20,051,656.53-30,081,351.70-8,536,912.90

Finding the Fourth Proportional to 20,051,656.53, 30,081,351.70 and 8,536,912.90

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Solution

The fourth proportional to 20,051,656.53, 30,081,351.70 and 8,536,912.90 is: 12,807,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051,656.53 : 30,081,351.70 = 8,536,912.90 : x
  2. Step 2: Convert to fraction form
    20,051,656.53/30,081,351.70 = 8,536,912.90/x
  3. Step 3: Cross multiply
    20,051,656.53x = 30,081,351.70 × 8,536,912.90
  4. Step 4: Simplify right side
    20,051,656.53x = 256,801,879,433,822.12
  5. Step 5: Solve for x
    x = 256,801,879,433,822.12/20,051,656.53
  6. Step 6: Final answer
    x = 12,807,015.67

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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.