Finding the Fourth Proportional to 13,256,082.64, 18,291,786.78 and 7,374,326.44
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Solution
The fourth proportional to 13,256,082.64, 18,291,786.78 and 7,374,326.44 is: 10,175,676.37
Step by Step Solution
- Step 1: Write the proportion equation
13,256,082.64 : 18,291,786.78 = 7,374,326.44 : x - Step 2: Convert to fraction form
13,256,082.64/18,291,786.78 = 7,374,326.44/x - Step 3: Cross multiply
13,256,082.64x = 18,291,786.78 × 7,374,326.44 - Step 4: Simplify right side
13,256,082.64x = 134,889,606,886,596.48 - Step 5: Solve for x
x = 134,889,606,886,596.48/13,256,082.64 - Step 6: Final answer
x = 10,175,676.37
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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.