Home / 12,661,331.20-18,991,996.80-5,942,867.20

Finding the Fourth Proportional to 12,661,331.20, 18,991,996.80 and 5,942,867.20

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Solution

The fourth proportional to 12,661,331.20, 18,991,996.80 and 5,942,867.20 is: 8,914,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,331.20 : 18,991,996.80 = 5,942,867.20 : x
  2. Step 2: Convert to fraction form
    12,661,331.20/18,991,996.80 = 5,942,867.20/x
  3. Step 3: Cross multiply
    12,661,331.20x = 18,991,996.80 × 5,942,867.20
  4. Step 4: Simplify right side
    12,661,331.20x = 112,866,914,845,224.97
  5. Step 5: Solve for x
    x = 112,866,914,845,224.97/12,661,331.20
  6. Step 6: Final answer
    x = 8,914,300.80

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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.