Home / 12,192,512.80-18,270,106.80-11,520,666.40

Finding the Fourth Proportional to 12,192,512.80, 18,270,106.80 and 11,520,666.40

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Solution

The fourth proportional to 12,192,512.80, 18,270,106.80 and 11,520,666.40 is: 17,263,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192,512.80 : 18,270,106.80 = 11,520,666.40 : x
  2. Step 2: Convert to fraction form
    12,192,512.80/18,270,106.80 = 11,520,666.40/x
  3. Step 3: Cross multiply
    12,192,512.80x = 18,270,106.80 × 11,520,666.40
  4. Step 4: Simplify right side
    12,192,512.80x = 210,483,805,535,171.53
  5. Step 5: Solve for x
    x = 210,483,805,535,171.53/12,192,512.80
  6. Step 6: Final answer
    x = 17,263,365.56

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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.