Home / 2,815,603.75-3,888,740.78-1,908,611.11

Finding the Fourth Proportional to 2,815,603.75, 3,888,740.78 and 1,908,611.11

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Solution

The fourth proportional to 2,815,603.75, 3,888,740.78 and 1,908,611.11 is: 2,636,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,603.75 : 3,888,740.78 = 1,908,611.11 : x
  2. Step 2: Convert to fraction form
    2,815,603.75/3,888,740.78 = 1,908,611.11/x
  3. Step 3: Cross multiply
    2,815,603.75x = 3,888,740.78 × 1,908,611.11
  4. Step 4: Simplify right side
    2,815,603.75x = 7,422,093,856,618.07
  5. Step 5: Solve for x
    x = 7,422,093,856,618.07/2,815,603.75
  6. Step 6: Final answer
    x = 2,636,057.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.