Finding the Fourth Proportional to 18,173,413.76, 27,220,069.80 and 15,021,678.84
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Solution
The fourth proportional to 18,173,413.76, 27,220,069.80 and 15,021,678.84 is: 22,499,413.27
Step by Step Solution
- Step 1: Write the proportion equation
18,173,413.76 : 27,220,069.80 = 15,021,678.84 : x - Step 2: Convert to fraction form
18,173,413.76/27,220,069.80 = 15,021,678.84/x - Step 3: Cross multiply
18,173,413.76x = 27,220,069.80 × 15,021,678.84 - Step 4: Simplify right side
18,173,413.76x = 408,891,146,537,983.06 - Step 5: Solve for x
x = 408,891,146,537,983.06/18,173,413.76 - Step 6: Final answer
x = 22,499,413.27
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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.