Finding the Fourth Proportional to 18,665,266.60, 27,941,912.70 and 17,557,964.20
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Solution
The fourth proportional to 18,665,266.60, 27,941,912.70 and 17,557,964.20 is: 26,284,280.50
Step by Step Solution
- Step 1: Write the proportion equation
18,665,266.60 : 27,941,912.70 = 17,557,964.20 : x - Step 2: Convert to fraction form
18,665,266.60/27,941,912.70 = 17,557,964.20/x - Step 3: Cross multiply
18,665,266.60x = 27,941,912.70 × 17,557,964.20 - Step 4: Simplify right side
18,665,266.60x = 490,603,102,866,125.31 - Step 5: Solve for x
x = 490,603,102,866,125.31/18,665,266.60 - Step 6: Final answer
x = 26,284,280.50
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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.