Finding the Fourth Proportional to 13,279,427.75, 18,326,548.76 and 7,399,452.26
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Solution
The fourth proportional to 13,279,427.75, 18,326,548.76 and 7,399,452.26 is: 10,211,767.04
Step by Step Solution
- Step 1: Write the proportion equation
13,279,427.75 : 18,326,548.76 = 7,399,452.26 : x - Step 2: Convert to fraction form
13,279,427.75/18,326,548.76 = 7,399,452.26/x - Step 3: Cross multiply
13,279,427.75x = 18,326,548.76 × 7,399,452.26 - Step 4: Simplify right side
13,279,427.75x = 135,606,422,567,048.08 - Step 5: Solve for x
x = 135,606,422,567,048.08/13,279,427.75 - Step 6: Final answer
x = 10,211,767.04
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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.