Home / 18,969,027.17-28,458,868.40-7,617,447.41

Finding the Fourth Proportional to 18,969,027.17, 28,458,868.40 and 7,617,447.41

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Solution

The fourth proportional to 18,969,027.17, 28,458,868.40 and 7,617,447.41 is: 11,428,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,027.17 : 28,458,868.40 = 7,617,447.41 : x
  2. Step 2: Convert to fraction form
    18,969,027.17/28,458,868.40 = 7,617,447.41/x
  3. Step 3: Cross multiply
    18,969,027.17x = 28,458,868.40 × 7,617,447.41
  4. Step 4: Simplify right side
    18,969,027.17x = 216,783,933,385,110.84
  5. Step 5: Solve for x
    x = 216,783,933,385,110.84/18,969,027.17
  6. Step 6: Final answer
    x = 11,428,310.55

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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.