Home / 20,334,738.18-28,051,562.24-12,984,843.54

Finding the Fourth Proportional to 20,334,738.18, 28,051,562.24 and 12,984,843.54

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Solution

The fourth proportional to 20,334,738.18, 28,051,562.24 and 12,984,843.54 is: 17,912,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,738.18 : 28,051,562.24 = 12,984,843.54 : x
  2. Step 2: Convert to fraction form
    20,334,738.18/28,051,562.24 = 12,984,843.54/x
  3. Step 3: Cross multiply
    20,334,738.18x = 28,051,562.24 × 12,984,843.54
  4. Step 4: Simplify right side
    20,334,738.18x = 364,245,146,738,971.88
  5. Step 5: Solve for x
    x = 364,245,146,738,971.88/20,334,738.18
  6. Step 6: Final answer
    x = 17,912,458.15

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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.