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Finding the Fourth Proportional to 13,801,979.35, 20,702,969.03 and 13,801,979.35

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Solution

The fourth proportional to 13,801,979.35, 20,702,969.03 and 13,801,979.35 is: 20,702,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801,979.35 : 20,702,969.03 = 13,801,979.35 : x
  2. Step 2: Convert to fraction form
    13,801,979.35/20,702,969.03 = 13,801,979.35/x
  3. Step 3: Cross multiply
    13,801,979.35x = 20,702,969.03 × 13,801,979.35
  4. Step 4: Simplify right side
    13,801,979.35x = 285,741,950,966,739.62
  5. Step 5: Solve for x
    x = 285,741,950,966,739.62/13,801,979.35
  6. Step 6: Final answer
    x = 20,702,969.03

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1.5x scale

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.