Home / 13,201,211.80-19,801,817.70-12,760,312.60

Finding the Fourth Proportional to 13,201,211.80, 19,801,817.70 and 12,760,312.60

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Solution

The fourth proportional to 13,201,211.80, 19,801,817.70 and 12,760,312.60 is: 19,140,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201,211.80 : 19,801,817.70 = 12,760,312.60 : x
  2. Step 2: Convert to fraction form
    13,201,211.80/19,801,817.70 = 12,760,312.60/x
  3. Step 3: Cross multiply
    13,201,211.80x = 19,801,817.70 × 12,760,312.60
  4. Step 4: Simplify right side
    13,201,211.80x = 252,677,383,900,213
  5. Step 5: Solve for x
    x = 252,677,383,900,213/13,201,211.80
  6. Step 6: Final answer
    x = 19,140,468.90

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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.