Home / 21,270,842.80-31,914,137.40-8,500,512.40

Finding the Fourth Proportional to 21,270,842.80, 31,914,137.40 and 8,500,512.40

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Solution

The fourth proportional to 21,270,842.80, 31,914,137.40 and 8,500,512.40 is: 12,753,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,842.80 : 31,914,137.40 = 8,500,512.40 : x
  2. Step 2: Convert to fraction form
    21,270,842.80/31,914,137.40 = 8,500,512.40/x
  3. Step 3: Cross multiply
    21,270,842.80x = 31,914,137.40 × 8,500,512.40
  4. Step 4: Simplify right side
    21,270,842.80x = 271,286,520,704,003.75
  5. Step 5: Solve for x
    x = 271,286,520,704,003.75/21,270,842.80
  6. Step 6: Final answer
    x = 12,753,914.98

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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.