Finding the Fourth Proportional to 18,432,004.20, 27,648,006.30 and 16,640,413.80
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Solution
The fourth proportional to 18,432,004.20, 27,648,006.30 and 16,640,413.80 is: 24,960,620.70
Step by Step Solution
- Step 1: Write the proportion equation
18,432,004.20 : 27,648,006.30 = 16,640,413.80 : x - Step 2: Convert to fraction form
18,432,004.20/27,648,006.30 = 16,640,413.80/x - Step 3: Cross multiply
18,432,004.20x = 27,648,006.30 × 16,640,413.80 - Step 4: Simplify right side
18,432,004.20x = 460,074,265,577,007 - Step 5: Solve for x
x = 460,074,265,577,007/18,432,004.20 - Step 6: Final answer
x = 24,960,620.70
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1.5x scale
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.