Finding the Fourth Proportional to 19,305,181.42, 26,631,296.19 and 12,328,525.42
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Solution
The fourth proportional to 19,305,181.42, 26,631,296.19 and 12,328,525.42 is: 17,007,072.09
Step by Step Solution
- Step 1: Write the proportion equation
19,305,181.42 : 26,631,296.19 = 12,328,525.42 : x - Step 2: Convert to fraction form
19,305,181.42/26,631,296.19 = 12,328,525.42/x - Step 3: Cross multiply
19,305,181.42x = 26,631,296.19 × 12,328,525.42 - Step 4: Simplify right side
19,305,181.42x = 328,324,612,045,964.19 - Step 5: Solve for x
x = 328,324,612,045,964.19/19,305,181.42 - Step 6: Final answer
x = 17,007,072.09
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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.