Home / 383,313,451.66-529,408,900.89-257,647,475.21

Finding the Fourth Proportional to 383,313,451.66, 529,408,900.89 and 257,647,475.21

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Solution

The fourth proportional to 383,313,451.66, 529,408,900.89 and 257,647,475.21 is: 355,846,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,313,451.66 : 529,408,900.89 = 257,647,475.21 : x
  2. Step 2: Convert to fraction form
    383,313,451.66/529,408,900.89 = 257,647,475.21/x
  3. Step 3: Cross multiply
    383,313,451.66x = 529,408,900.89 × 257,647,475.21
  4. Step 4: Simplify right side
    383,313,451.66x = 136,400,866,665,362,576
  5. Step 5: Solve for x
    x = 136,400,866,665,362,576/383,313,451.66
  6. Step 6: Final answer
    x = 355,846,803.90

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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.