Finding the Fourth Proportional to 13,182,738.19, 18,189,236.48 and 7,956,594.09
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Solution
The fourth proportional to 13,182,738.19, 18,189,236.48 and 7,956,594.09 is: 10,978,324.03
Step by Step Solution
- Step 1: Write the proportion equation
13,182,738.19 : 18,189,236.48 = 7,956,594.09 : x - Step 2: Convert to fraction form
13,182,738.19/18,189,236.48 = 7,956,594.09/x - Step 3: Cross multiply
13,182,738.19x = 18,189,236.48 × 7,956,594.09 - Step 4: Simplify right side
13,182,738.19x = 144,724,371,438,597.44 - Step 5: Solve for x
x = 144,724,371,438,597.44/13,182,738.19 - Step 6: Final answer
x = 10,978,324.03
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1.5x scale
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.