Home / 12,226,413.78-16,872,625.62-6,720,297.71

Finding the Fourth Proportional to 12,226,413.78, 16,872,625.62 and 6,720,297.71

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Solution

The fourth proportional to 12,226,413.78, 16,872,625.62 and 6,720,297.71 is: 9,274,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226,413.78 : 16,872,625.62 = 6,720,297.71 : x
  2. Step 2: Convert to fraction form
    12,226,413.78/16,872,625.62 = 6,720,297.71/x
  3. Step 3: Cross multiply
    12,226,413.78x = 16,872,625.62 × 6,720,297.71
  4. Step 4: Simplify right side
    12,226,413.78x = 113,389,067,231,410.20
  5. Step 5: Solve for x
    x = 113,389,067,231,410.20/12,226,413.78
  6. Step 6: Final answer
    x = 9,274,106.80

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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.