Finding the Fourth Proportional to 13,107,851.59, 18,081,427.67 and 8,204,561.14
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Solution
The fourth proportional to 13,107,851.59, 18,081,427.67 and 8,204,561.14 is: 11,317,657.80
Step by Step Solution
- Step 1: Write the proportion equation
13,107,851.59 : 18,081,427.67 = 8,204,561.14 : x - Step 2: Convert to fraction form
13,107,851.59/18,081,427.67 = 8,204,561.14/x - Step 3: Cross multiply
13,107,851.59x = 18,081,427.67 × 8,204,561.14 - Step 4: Simplify right side
13,107,851.59x = 148,350,178,726,595.62 - Step 5: Solve for x
x = 148,350,178,726,595.62/13,107,851.59 - Step 6: Final answer
x = 11,317,657.80
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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.