Home / 7,758,192.78-11,619,352.53-7,489,150.78

Finding the Fourth Proportional to 7,758,192.78, 11,619,352.53 and 7,489,150.78

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Solution

The fourth proportional to 7,758,192.78, 11,619,352.53 and 7,489,150.78 is: 11,216,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758,192.78 : 11,619,352.53 = 7,489,150.78 : x
  2. Step 2: Convert to fraction form
    7,758,192.78/11,619,352.53 = 7,489,150.78/x
  3. Step 3: Cross multiply
    7,758,192.78x = 11,619,352.53 × 7,489,150.78
  4. Step 4: Simplify right side
    7,758,192.78x = 87,019,083,063,144.47
  5. Step 5: Solve for x
    x = 87,019,083,063,144.47/7,758,192.78
  6. Step 6: Final answer
    x = 11,216,411.54

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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.