Finding the Fourth Proportional to 18,666,811.20, 27,944,229.60 and 11,089,876.80
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Solution
The fourth proportional to 18,666,811.20, 27,944,229.60 and 11,089,876.80 is: 16,601,553.43
Step by Step Solution
- Step 1: Write the proportion equation
18,666,811.20 : 27,944,229.60 = 11,089,876.80 : x - Step 2: Convert to fraction form
18,666,811.20/27,944,229.60 = 11,089,876.80/x - Step 3: Cross multiply
18,666,811.20x = 27,944,229.60 × 11,089,876.80 - Step 4: Simplify right side
18,666,811.20x = 309,898,063,534,913.31 - Step 5: Solve for x
x = 309,898,063,534,913.31/18,666,811.20 - Step 6: Final answer
x = 16,601,553.43
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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.