Home / 12,143,960.20-18,215,940.30-3,168,512.20

Finding the Fourth Proportional to 12,143,960.20, 18,215,940.30 and 3,168,512.20

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Solution

The fourth proportional to 12,143,960.20, 18,215,940.30 and 3,168,512.20 is: 4,752,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,960.20 : 18,215,940.30 = 3,168,512.20 : x
  2. Step 2: Convert to fraction form
    12,143,960.20/18,215,940.30 = 3,168,512.20/x
  3. Step 3: Cross multiply
    12,143,960.20x = 18,215,940.30 × 3,168,512.20
  4. Step 4: Simplify right side
    12,143,960.20x = 57,717,429,075,021.66
  5. Step 5: Solve for x
    x = 57,717,429,075,021.66/12,143,960.20
  6. Step 6: Final answer
    x = 4,752,768.30

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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.