Home / 20,470,851.56-28,212,350.82-13,583,181.80

Finding the Fourth Proportional to 20,470,851.56, 28,212,350.82 and 13,583,181.80

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Solution

The fourth proportional to 20,470,851.56, 28,212,350.82 and 13,583,181.80 is: 18,719,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470,851.56 : 28,212,350.82 = 13,583,181.80 : x
  2. Step 2: Convert to fraction form
    20,470,851.56/28,212,350.82 = 13,583,181.80/x
  3. Step 3: Cross multiply
    20,470,851.56x = 28,212,350.82 × 13,583,181.80
  4. Step 4: Simplify right side
    20,470,851.56x = 383,213,490,193,439.12
  5. Step 5: Solve for x
    x = 383,213,490,193,439.12/20,470,851.56
  6. Step 6: Final answer
    x = 18,719,958.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.