Home / 7,758,193.78-11,619,354.03-7,489,151.78

Finding the Fourth Proportional to 7,758,193.78, 11,619,354.03 and 7,489,151.78

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Solution

The fourth proportional to 7,758,193.78, 11,619,354.03 and 7,489,151.78 is: 11,216,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758,193.78 : 11,619,354.03 = 7,489,151.78 : x
  2. Step 2: Convert to fraction form
    7,758,193.78/11,619,354.03 = 7,489,151.78/x
  3. Step 3: Cross multiply
    7,758,193.78x = 11,619,354.03 × 7,489,151.78
  4. Step 4: Simplify right side
    7,758,193.78x = 87,019,105,916,224.67
  5. Step 5: Solve for x
    x = 87,019,105,916,224.67/7,758,193.78
  6. Step 6: Final answer
    x = 11,216,413.04

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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.