Home / 18,783,645.60-28,159,065.90-7,276,963.80

Finding the Fourth Proportional to 18,783,645.60, 28,159,065.90 and 7,276,963.80

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Solution

The fourth proportional to 18,783,645.60, 28,159,065.90 and 7,276,963.80 is: 10,909,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,645.60 : 28,159,065.90 = 7,276,963.80 : x
  2. Step 2: Convert to fraction form
    18,783,645.60/28,159,065.90 = 7,276,963.80/x
  3. Step 3: Cross multiply
    18,783,645.60x = 28,159,065.90 × 7,276,963.80
  4. Step 4: Simplify right side
    18,783,645.60x = 204,912,503,196,114.41
  5. Step 5: Solve for x
    x = 204,912,503,196,114.41/18,783,645.60
  6. Step 6: Final answer
    x = 10,909,091.21

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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.