Home / 18,792,137.40-28,188,206.10-11,580,286.20

Finding the Fourth Proportional to 18,792,137.40, 28,188,206.10 and 11,580,286.20

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Solution

The fourth proportional to 18,792,137.40, 28,188,206.10 and 11,580,286.20 is: 17,370,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,137.40 : 28,188,206.10 = 11,580,286.20 : x
  2. Step 2: Convert to fraction form
    18,792,137.40/28,188,206.10 = 11,580,286.20/x
  3. Step 3: Cross multiply
    18,792,137.40x = 28,188,206.10 × 11,580,286.20
  4. Step 4: Simplify right side
    18,792,137.40x = 326,427,494,102,585.81
  5. Step 5: Solve for x
    x = 326,427,494,102,585.81/18,792,137.40
  6. Step 6: Final answer
    x = 17,370,429.30

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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.