Finding the Fourth Proportional to 5,029,514.86, 7,540,040.42 and 2,187,486.48
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Solution
The fourth proportional to 5,029,514.86, 7,540,040.42 and 2,187,486.48 is: 3,279,389.15
Step by Step Solution
- Step 1: Write the proportion equation
5,029,514.86 : 7,540,040.42 = 2,187,486.48 : x - Step 2: Convert to fraction form
5,029,514.86/7,540,040.42 = 2,187,486.48/x - Step 3: Cross multiply
5,029,514.86x = 7,540,040.42 × 2,187,486.48 - Step 4: Simplify right side
5,029,514.86x = 16,493,736,477,403.52 - Step 5: Solve for x
x = 16,493,736,477,403.52/5,029,514.86 - Step 6: Final answer
x = 3,279,389.15
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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.