Home / 12,603,763.40-18,914,976.30-8,342,515.40

Finding the Fourth Proportional to 12,603,763.40, 18,914,976.30 and 8,342,515.40

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Solution

The fourth proportional to 12,603,763.40, 18,914,976.30 and 8,342,515.40 is: 12,519,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,763.40 : 18,914,976.30 = 8,342,515.40 : x
  2. Step 2: Convert to fraction form
    12,603,763.40/18,914,976.30 = 8,342,515.40/x
  3. Step 3: Cross multiply
    12,603,763.40x = 18,914,976.30 × 8,342,515.40
  4. Step 4: Simplify right side
    12,603,763.40x = 157,798,481,073,385.03
  5. Step 5: Solve for x
    x = 157,798,481,073,385.03/12,603,763.40
  6. Step 6: Final answer
    x = 12,519,949.48

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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.