Home / 13,763,906.20-20,645,859.30-12,393,969.40

Finding the Fourth Proportional to 13,763,906.20, 20,645,859.30 and 12,393,969.40

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Solution

The fourth proportional to 13,763,906.20, 20,645,859.30 and 12,393,969.40 is: 18,590,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763,906.20 : 20,645,859.30 = 12,393,969.40 : x
  2. Step 2: Convert to fraction form
    13,763,906.20/20,645,859.30 = 12,393,969.40/x
  3. Step 3: Cross multiply
    13,763,906.20x = 20,645,859.30 × 12,393,969.40
  4. Step 4: Simplify right side
    13,763,906.20x = 255,884,148,400,905.44
  5. Step 5: Solve for x
    x = 255,884,148,400,905.44/13,763,906.20
  6. Step 6: Final answer
    x = 18,590,954.10

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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.