Finding the Fourth Proportional to 11,431,010.67, 15,787,887.03 and 7,528,213.19
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Solution
The fourth proportional to 11,431,010.67, 15,787,887.03 and 7,528,213.19 is: 10,397,556.50
Step by Step Solution
- Step 1: Write the proportion equation
11,431,010.67 : 15,787,887.03 = 7,528,213.19 : x - Step 2: Convert to fraction form
11,431,010.67/15,787,887.03 = 7,528,213.19/x - Step 3: Cross multiply
11,431,010.67x = 15,787,887.03 × 7,528,213.19 - Step 4: Simplify right side
11,431,010.67x = 118,854,579,302,536.48 - Step 5: Solve for x
x = 118,854,579,302,536.48/11,431,010.67 - Step 6: Final answer
x = 10,397,556.50
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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.