Home / 20,333,660.97-28,059,441.80-11,511,740.37

Finding the Fourth Proportional to 20,333,660.97, 28,059,441.80 and 11,511,740.37

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Solution

The fourth proportional to 20,333,660.97, 28,059,441.80 and 11,511,740.37 is: 15,885,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333,660.97 : 28,059,441.80 = 11,511,740.37 : x
  2. Step 2: Convert to fraction form
    20,333,660.97/28,059,441.80 = 11,511,740.37/x
  3. Step 3: Cross multiply
    20,333,660.97x = 28,059,441.80 × 11,511,740.37
  4. Step 4: Simplify right side
    20,333,660.97x = 323,013,008,871,166.75
  5. Step 5: Solve for x
    x = 323,013,008,871,166.75/20,333,660.97
  6. Step 6: Final answer
    x = 15,885,629.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.