Home / 20,155,999.80-30,233,999.70-11,198,047.80

Finding the Fourth Proportional to 20,155,999.80, 30,233,999.70 and 11,198,047.80

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Solution

The fourth proportional to 20,155,999.80, 30,233,999.70 and 11,198,047.80 is: 16,797,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,999.80 : 30,233,999.70 = 11,198,047.80 : x
  2. Step 2: Convert to fraction form
    20,155,999.80/30,233,999.70 = 11,198,047.80/x
  3. Step 3: Cross multiply
    20,155,999.80x = 30,233,999.70 × 11,198,047.80
  4. Step 4: Simplify right side
    20,155,999.80x = 338,561,773,825,785.69
  5. Step 5: Solve for x
    x = 338,561,773,825,785.69/20,155,999.80
  6. Step 6: Final answer
    x = 16,797,071.70

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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.