Finding the Fourth Proportional to 18,677,167.57, 27,958,290.79 and 12,186,266.43
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Solution
The fourth proportional to 18,677,167.57, 27,958,290.79 and 12,186,266.43 is: 18,241,908.43
Step by Step Solution
- Step 1: Write the proportion equation
18,677,167.57 : 27,958,290.79 = 12,186,266.43 : x - Step 2: Convert to fraction form
18,677,167.57/27,958,290.79 = 12,186,266.43/x - Step 3: Cross multiply
18,677,167.57x = 27,958,290.79 × 12,186,266.43 - Step 4: Simplify right side
18,677,167.57x = 340,707,180,494,355.19 - Step 5: Solve for x
x = 340,707,180,494,355.19/18,677,167.57 - Step 6: Final answer
x = 18,241,908.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.