Home / 20,967,216.43-31,440,300.21-12,216,327.54

Finding the Fourth Proportional to 20,967,216.43, 31,440,300.21 and 12,216,327.54

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Solution

The fourth proportional to 20,967,216.43, 31,440,300.21 and 12,216,327.54 is: 18,318,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967,216.43 : 31,440,300.21 = 12,216,327.54 : x
  2. Step 2: Convert to fraction form
    20,967,216.43/31,440,300.21 = 12,216,327.54/x
  3. Step 3: Cross multiply
    20,967,216.43x = 31,440,300.21 × 12,216,327.54
  4. Step 4: Simplify right side
    20,967,216.43x = 384,085,005,321,290.75
  5. Step 5: Solve for x
    x = 384,085,005,321,290.75/20,967,216.43
  6. Step 6: Final answer
    x = 18,318,359.36

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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.