Home / 21,212,052.44-31,793,401.09-12,120,523.94

Finding the Fourth Proportional to 21,212,052.44, 31,793,401.09 and 12,120,523.94

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Solution

The fourth proportional to 21,212,052.44, 31,793,401.09 and 12,120,523.94 is: 18,166,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,052.44 : 31,793,401.09 = 12,120,523.94 : x
  2. Step 2: Convert to fraction form
    21,212,052.44/31,793,401.09 = 12,120,523.94/x
  3. Step 3: Cross multiply
    21,212,052.44x = 31,793,401.09 × 12,120,523.94
  4. Step 4: Simplify right side
    21,212,052.44x = 385,352,679,140,001.25
  5. Step 5: Solve for x
    x = 385,352,679,140,001.25/21,212,052.44
  6. Step 6: Final answer
    x = 18,166,685.21

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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.