Home / 457,137,749.37-630,839,364.39-268,978,230.21

Finding the Fourth Proportional to 457,137,749.37, 630,839,364.39 and 268,978,230.21

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Solution

The fourth proportional to 457,137,749.37, 630,839,364.39 and 268,978,230.21 is: 371,183,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,137,749.37 : 630,839,364.39 = 268,978,230.21 : x
  2. Step 2: Convert to fraction form
    457,137,749.37/630,839,364.39 = 268,978,230.21/x
  3. Step 3: Cross multiply
    457,137,749.37x = 630,839,364.39 × 268,978,230.21
  4. Step 4: Simplify right side
    457,137,749.37x = 169,682,055,780,423,488
  5. Step 5: Solve for x
    x = 169,682,055,780,423,488/457,137,749.37
  6. Step 6: Final answer
    x = 371,183,644.35

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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.