Home / 457,137,747.37-630,839,361.63-268,978,228.21

Finding the Fourth Proportional to 457,137,747.37, 630,839,361.63 and 268,978,228.21

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Solution

The fourth proportional to 457,137,747.37, 630,839,361.63 and 268,978,228.21 is: 371,183,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,137,747.37 : 630,839,361.63 = 268,978,228.21 : x
  2. Step 2: Convert to fraction form
    457,137,747.37/630,839,361.63 = 268,978,228.21/x
  3. Step 3: Cross multiply
    457,137,747.37x = 630,839,361.63 × 268,978,228.21
  4. Step 4: Simplify right side
    457,137,747.37x = 169,682,053,776,364,832
  5. Step 5: Solve for x
    x = 169,682,053,776,364,832/457,137,747.37
  6. Step 6: Final answer
    x = 371,183,641.59

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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.