Finding the Fourth Proportional to 12,318,268.09, 16,998,969.66 and 6,811,839.49
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Solution
The fourth proportional to 12,318,268.09, 16,998,969.66 and 6,811,839.49 is: 9,400,205.61
Step by Step Solution
- Step 1: Write the proportion equation
12,318,268.09 : 16,998,969.66 = 6,811,839.49 : x - Step 2: Convert to fraction form
12,318,268.09/16,998,969.66 = 6,811,839.49/x - Step 3: Cross multiply
12,318,268.09x = 16,998,969.66 × 6,811,839.49 - Step 4: Simplify right side
12,318,268.09x = 115,794,252,819,299.88 - Step 5: Solve for x
x = 115,794,252,819,299.88/12,318,268.09 - Step 6: Final answer
x = 9,400,205.61
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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.