Finding the Fourth Proportional to 39,139,213.06, 54,012,556.97 and 21,498,527.31
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Solution
The fourth proportional to 39,139,213.06, 54,012,556.97 and 21,498,527.31 is: 29,668,210.99
Step by Step Solution
- Step 1: Write the proportion equation
39,139,213.06 : 54,012,556.97 = 21,498,527.31 : x - Step 2: Convert to fraction form
39,139,213.06/54,012,556.97 = 21,498,527.31/x - Step 3: Cross multiply
39,139,213.06x = 54,012,556.97 × 21,498,527.31 - Step 4: Simplify right side
39,139,213.06x = 1,161,190,431,102,475.75 - Step 5: Solve for x
x = 1,161,190,431,102,475.75/39,139,213.06 - Step 6: Final answer
x = 29,668,210.99
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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.