Finding the Fourth Proportional to 7,986,839.04, 11,021,837.63 and 4,315,755.54
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Solution
The fourth proportional to 7,986,839.04, 11,021,837.63 and 4,315,755.54 is: 5,955,742.51
Step by Step Solution
- Step 1: Write the proportion equation
7,986,839.04 : 11,021,837.63 = 4,315,755.54 : x - Step 2: Convert to fraction form
7,986,839.04/11,021,837.63 = 4,315,755.54/x - Step 3: Cross multiply
7,986,839.04x = 11,021,837.63 × 4,315,755.54 - Step 4: Simplify right side
7,986,839.04x = 47,567,556,791,074.20 - Step 5: Solve for x
x = 47,567,556,791,074.20/7,986,839.04 - Step 6: Final answer
x = 5,955,742.51
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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.