Home / 18,809,715.40-28,214,573.10-11,597,864.20

Finding the Fourth Proportional to 18,809,715.40, 28,214,573.10 and 11,597,864.20

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Solution

The fourth proportional to 18,809,715.40, 28,214,573.10 and 11,597,864.20 is: 17,396,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,715.40 : 28,214,573.10 = 11,597,864.20 : x
  2. Step 2: Convert to fraction form
    18,809,715.40/28,214,573.10 = 11,597,864.20/x
  3. Step 3: Cross multiply
    18,809,715.40x = 28,214,573.10 × 11,597,864.20
  4. Step 4: Simplify right side
    18,809,715.40x = 327,228,787,274,773
  5. Step 5: Solve for x
    x = 327,228,787,274,773/18,809,715.40
  6. Step 6: Final answer
    x = 17,396,796.30

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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.