Home / 20,914,487.43-28,857,263.82-12,654,344.30

Finding the Fourth Proportional to 20,914,487.43, 28,857,263.82 and 12,654,344.30

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Solution

The fourth proportional to 20,914,487.43, 28,857,263.82 and 12,654,344.30 is: 17,460,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914,487.43 : 28,857,263.82 = 12,654,344.30 : x
  2. Step 2: Convert to fraction form
    20,914,487.43/28,857,263.82 = 12,654,344.30/x
  3. Step 3: Cross multiply
    20,914,487.43x = 28,857,263.82 × 12,654,344.30
  4. Step 4: Simplify right side
    20,914,487.43x = 365,169,751,789,926.94
  5. Step 5: Solve for x
    x = 365,169,751,789,926.94/20,914,487.43
  6. Step 6: Final answer
    x = 17,460,133.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.