Finding the Fourth Proportional to 5,132,284.86, 7,081,764.13 and 2,956,403.02
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Solution
The fourth proportional to 5,132,284.86, 7,081,764.13 and 2,956,403.02 is: 4,079,381.69
Step by Step Solution
- Step 1: Write the proportion equation
5,132,284.86 : 7,081,764.13 = 2,956,403.02 : x - Step 2: Convert to fraction form
5,132,284.86/7,081,764.13 = 2,956,403.02/x - Step 3: Cross multiply
5,132,284.86x = 7,081,764.13 × 2,956,403.02 - Step 4: Simplify right side
5,132,284.86x = 20,936,548,860,859.67 - Step 5: Solve for x
x = 20,936,548,860,859.67/5,132,284.86 - Step 6: Final answer
x = 4,079,381.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.