Finding the Fourth Proportional to 13,195,065.40, 18,198,394.26 and 9,287,756.24
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Solution
The fourth proportional to 13,195,065.40, 18,198,394.26 and 9,287,756.24 is: 12,809,504.52
Step by Step Solution
- Step 1: Write the proportion equation
13,195,065.40 : 18,198,394.26 = 9,287,756.24 : x - Step 2: Convert to fraction form
13,195,065.40/18,198,394.26 = 9,287,756.24/x - Step 3: Cross multiply
13,195,065.40x = 18,198,394.26 × 9,287,756.24 - Step 4: Simplify right side
13,195,065.40x = 169,022,249,846,295.19 - Step 5: Solve for x
x = 169,022,249,846,295.19/13,195,065.40 - Step 6: Final answer
x = 12,809,504.52
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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.