Home / 383,313,450.81-529,408,899.69-257,647,474.33

Finding the Fourth Proportional to 383,313,450.81, 529,408,899.69 and 257,647,474.33

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Solution

The fourth proportional to 383,313,450.81, 529,408,899.69 and 257,647,474.33 is: 355,846,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,313,450.81 : 529,408,899.69 = 257,647,474.33 : x
  2. Step 2: Convert to fraction form
    383,313,450.81/529,408,899.69 = 257,647,474.33/x
  3. Step 3: Cross multiply
    383,313,450.81x = 529,408,899.69 × 257,647,474.33
  4. Step 4: Simplify right side
    383,313,450.81x = 136,400,865,892,952,832
  5. Step 5: Solve for x
    x = 136,400,865,892,952,832/383,313,450.81
  6. Step 6: Final answer
    x = 355,846,802.67

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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.