Finding the Fourth Proportional to 18,472,575.20, 27,661,623.60 and 13,654,176.80
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Solution
The fourth proportional to 18,472,575.20, 27,661,623.60 and 13,654,176.80 is: 20,446,347.90
Step by Step Solution
- Step 1: Write the proportion equation
18,472,575.20 : 27,661,623.60 = 13,654,176.80 : x - Step 2: Convert to fraction form
18,472,575.20/27,661,623.60 = 13,654,176.80/x - Step 3: Cross multiply
18,472,575.20x = 27,661,623.60 × 13,654,176.80 - Step 4: Simplify right side
18,472,575.20x = 377,696,699,209,452.50 - Step 5: Solve for x
x = 377,696,699,209,452.50/18,472,575.20 - Step 6: Final answer
x = 20,446,347.90
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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.