Finding the Fourth Proportional to 18,363,469.20, 27,545,203.80 and 9,860,413.20
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Solution
The fourth proportional to 18,363,469.20, 27,545,203.80 and 9,860,413.20 is: 14,790,619.80
Step by Step Solution
- Step 1: Write the proportion equation
18,363,469.20 : 27,545,203.80 = 9,860,413.20 : x - Step 2: Convert to fraction form
18,363,469.20/27,545,203.80 = 9,860,413.20/x - Step 3: Cross multiply
18,363,469.20x = 27,545,203.80 × 9,860,413.20 - Step 4: Simplify right side
18,363,469.20x = 271,607,091,146,210.16 - Step 5: Solve for x
x = 271,607,091,146,210.16/18,363,469.20 - Step 6: Final answer
x = 14,790,619.80
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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.