Finding the Fourth Proportional to 15,343,758.56, 21,174,086.67 and 8,374,486.07
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Solution
The fourth proportional to 15,343,758.56, 21,174,086.67 and 8,374,486.07 is: 11,556,626.96
Step by Step Solution
- Step 1: Write the proportion equation
15,343,758.56 : 21,174,086.67 = 8,374,486.07 : x - Step 2: Convert to fraction form
15,343,758.56/21,174,086.67 = 8,374,486.07/x - Step 3: Cross multiply
15,343,758.56x = 21,174,086.67 × 8,374,486.07 - Step 4: Simplify right side
15,343,758.56x = 177,322,093,836,420.09 - Step 5: Solve for x
x = 177,322,093,836,420.09/15,343,758.56 - Step 6: Final answer
x = 11,556,626.96
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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.