Home / 12,122,945-18,187,413.69-3,603,245.93

Finding the Fourth Proportional to 12,122,945, 18,187,413.69 and 3,603,245.93

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Solution

The fourth proportional to 12,122,945, 18,187,413.69 and 3,603,245.93 is: 5,405,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122,945 : 18,187,413.69 = 3,603,245.93 : x
  2. Step 2: Convert to fraction form
    12,122,945/18,187,413.69 = 3,603,245.93/x
  3. Step 3: Cross multiply
    12,122,945x = 18,187,413.69 × 3,603,245.93
  4. Step 4: Simplify right side
    12,122,945x = 65,533,724,355,718.79
  5. Step 5: Solve for x
    x = 65,533,724,355,718.79/12,122,945
  6. Step 6: Final answer
    x = 5,405,759.44

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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.