Home / 257,282,253.78-355,049,240.11-139,807,304.56

Finding the Fourth Proportional to 257,282,253.78, 355,049,240.11 and 139,807,304.56

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Solution

The fourth proportional to 257,282,253.78, 355,049,240.11 and 139,807,304.56 is: 192,933,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,282,253.78 : 355,049,240.11 = 139,807,304.56 : x
  2. Step 2: Convert to fraction form
    257,282,253.78/355,049,240.11 = 139,807,304.56/x
  3. Step 3: Cross multiply
    257,282,253.78x = 355,049,240.11 × 139,807,304.56
  4. Step 4: Simplify right side
    257,282,253.78x = 49,638,477,245,855,344
  5. Step 5: Solve for x
    x = 49,638,477,245,855,344/257,282,253.78
  6. Step 6: Final answer
    x = 192,933,933.52

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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.