Home / 383,313,449.81-529,408,898.31-257,647,473.33

Finding the Fourth Proportional to 383,313,449.81, 529,408,898.31 and 257,647,473.33

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Solution

The fourth proportional to 383,313,449.81, 529,408,898.31 and 257,647,473.33 is: 355,846,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,313,449.81 : 529,408,898.31 = 257,647,473.33 : x
  2. Step 2: Convert to fraction form
    383,313,449.81/529,408,898.31 = 257,647,473.33/x
  3. Step 3: Cross multiply
    383,313,449.81x = 529,408,898.31 × 257,647,473.33
  4. Step 4: Simplify right side
    383,313,449.81x = 136,400,865,007,990,416
  5. Step 5: Solve for x
    x = 136,400,865,007,990,416/383,313,449.81
  6. Step 6: Final answer
    x = 355,846,801.30

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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.