Home / 768,344,552.82-1,152,512,974.64-186,078,782.72

Finding the Fourth Proportional to 768,344,552.82, 1,152,512,974.64 and 186,078,782.72

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Solution

The fourth proportional to 768,344,552.82, 1,152,512,974.64 and 186,078,782.72 is: 279,117,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,344,552.82 : 1,152,512,974.64 = 186,078,782.72 : x
  2. Step 2: Convert to fraction form
    768,344,552.82/1,152,512,974.64 = 186,078,782.72/x
  3. Step 3: Cross multiply
    768,344,552.82x = 1,152,512,974.64 × 186,078,782.72
  4. Step 4: Simplify right side
    768,344,552.82x = 214,458,211,393,363,904
  5. Step 5: Solve for x
    x = 214,458,211,393,363,904/768,344,552.82
  6. Step 6: Final answer
    x = 279,117,240.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.