Home / 257,325,536.55-355,111,982.78-139,850,872.86

Finding the Fourth Proportional to 257,325,536.55, 355,111,982.78 and 139,850,872.86

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Solution

The fourth proportional to 257,325,536.55, 355,111,982.78 and 139,850,872.86 is: 192,995,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,325,536.55 : 355,111,982.78 = 139,850,872.86 : x
  2. Step 2: Convert to fraction form
    257,325,536.55/355,111,982.78 = 139,850,872.86/x
  3. Step 3: Cross multiply
    257,325,536.55x = 355,111,982.78 × 139,850,872.86
  4. Step 4: Simplify right side
    257,325,536.55x = 49,662,720,754,129,040
  5. Step 5: Solve for x
    x = 49,662,720,754,129,040/257,325,536.55
  6. Step 6: Final answer
    x = 192,995,694.95

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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.