Finding the Fourth Proportional to 22,143,413.36, 30,557,929.48 and 12,353,859.44
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Solution
The fourth proportional to 22,143,413.36, 30,557,929.48 and 12,353,859.44 is: 17,048,336.65
Step by Step Solution
- Step 1: Write the proportion equation
22,143,413.36 : 30,557,929.48 = 12,353,859.44 : x - Step 2: Convert to fraction form
22,143,413.36/30,557,929.48 = 12,353,859.44/x - Step 3: Cross multiply
22,143,413.36x = 30,557,929.48 × 12,353,859.44 - Step 4: Simplify right side
22,143,413.36x = 377,508,365,573,352.25 - Step 5: Solve for x
x = 377,508,365,573,352.25/22,143,413.36 - Step 6: Final answer
x = 17,048,336.65
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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.