Finding the Fourth Proportional to 10,992,381.12, 16,480,600 and 7,389,211.12
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Solution
The fourth proportional to 10,992,381.12, 16,480,600 and 7,389,211.12 is: 11,078,458.02
Step by Step Solution
- Step 1: Write the proportion equation
10,992,381.12 : 16,480,600 = 7,389,211.12 : x - Step 2: Convert to fraction form
10,992,381.12/16,480,600 = 7,389,211.12/x - Step 3: Cross multiply
10,992,381.12x = 16,480,600 × 7,389,211.12 - Step 4: Simplify right side
10,992,381.12x = 121,778,632,784,272 - Step 5: Solve for x
x = 121,778,632,784,272/10,992,381.12 - Step 6: Final answer
x = 11,078,458.02
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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.