Home / 20,231,999.70-30,347,999.55-17,893,659.30

Finding the Fourth Proportional to 20,231,999.70, 30,347,999.55 and 17,893,659.30

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Solution

The fourth proportional to 20,231,999.70, 30,347,999.55 and 17,893,659.30 is: 26,840,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,999.70 : 30,347,999.55 = 17,893,659.30 : x
  2. Step 2: Convert to fraction form
    20,231,999.70/30,347,999.55 = 17,893,659.30/x
  3. Step 3: Cross multiply
    20,231,999.70x = 30,347,999.55 × 17,893,659.30
  4. Step 4: Simplify right side
    20,231,999.70x = 543,036,764,384,253.38
  5. Step 5: Solve for x
    x = 543,036,764,384,253.38/20,231,999.70
  6. Step 6: Final answer
    x = 26,840,488.95

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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.