Finding the Fourth Proportional to 18,331,920, 27,503,945.28 and 9,810,357.12
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Solution
The fourth proportional to 18,331,920, 27,503,945.28 and 9,810,357.12 is: 14,718,781.52
Step by Step Solution
- Step 1: Write the proportion equation
18,331,920 : 27,503,945.28 = 9,810,357.12 : x - Step 2: Convert to fraction form
18,331,920/27,503,945.28 = 9,810,357.12/x - Step 3: Cross multiply
18,331,920x = 27,503,945.28 × 9,810,357.12 - Step 4: Simplify right side
18,331,920x = 269,823,525,405,738.38 - Step 5: Solve for x
x = 269,823,525,405,738.38/18,331,920 - Step 6: Final answer
x = 14,718,781.52
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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.