Home / 20,860,207.20-31,290,310.80-13,675,912.20

Finding the Fourth Proportional to 20,860,207.20, 31,290,310.80 and 13,675,912.20

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Solution

The fourth proportional to 20,860,207.20, 31,290,310.80 and 13,675,912.20 is: 20,513,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,207.20 : 31,290,310.80 = 13,675,912.20 : x
  2. Step 2: Convert to fraction form
    20,860,207.20/31,290,310.80 = 13,675,912.20/x
  3. Step 3: Cross multiply
    20,860,207.20x = 31,290,310.80 × 13,675,912.20
  4. Step 4: Simplify right side
    20,860,207.20x = 427,923,543,211,511.75
  5. Step 5: Solve for x
    x = 427,923,543,211,511.75/20,860,207.20
  6. Step 6: Final answer
    x = 20,513,868.30

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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.