Finding the Fourth Proportional to 18,677,167.90, 27,958,291.26 and 12,186,266.75
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Solution
The fourth proportional to 18,677,167.90, 27,958,291.26 and 12,186,266.75 is: 18,241,908.89
Step by Step Solution
- Step 1: Write the proportion equation
18,677,167.90 : 27,958,291.26 = 12,186,266.75 : x - Step 2: Convert to fraction form
18,677,167.90/27,958,291.26 = 12,186,266.75/x - Step 3: Cross multiply
18,677,167.90x = 27,958,291.26 × 12,186,266.75 - Step 4: Simplify right side
18,677,167.90x = 340,707,195,087,907.25 - Step 5: Solve for x
x = 340,707,195,087,907.25/18,677,167.90 - Step 6: Final answer
x = 18,241,908.89
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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.