Home / 20,860,617.45-31,304,212.20-12,224,701.20

Finding the Fourth Proportional to 20,860,617.45, 31,304,212.20 and 12,224,701.20

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Solution

The fourth proportional to 20,860,617.45, 31,304,212.20 and 12,224,701.20 is: 18,344,837.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,617.45 : 31,304,212.20 = 12,224,701.20 : x
  2. Step 2: Convert to fraction form
    20,860,617.45/31,304,212.20 = 12,224,701.20/x
  3. Step 3: Cross multiply
    20,860,617.45x = 31,304,212.20 × 12,224,701.20
  4. Step 4: Simplify right side
    20,860,617.45x = 382,684,640,446,394.62
  5. Step 5: Solve for x
    x = 382,684,640,446,394.62/20,860,617.45
  6. Step 6: Final answer
    x = 18,344,837.65

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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.