Finding the Fourth Proportional to 18,986,497.31, 26,201,492.09 and 10,284,669.92
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Solution
The fourth proportional to 18,986,497.31, 26,201,492.09 and 10,284,669.92 is: 14,192,912.63
Step by Step Solution
- Step 1: Write the proportion equation
18,986,497.31 : 26,201,492.09 = 10,284,669.92 : x - Step 2: Convert to fraction form
18,986,497.31/26,201,492.09 = 10,284,669.92/x - Step 3: Cross multiply
18,986,497.31x = 26,201,492.09 × 10,284,669.92 - Step 4: Simplify right side
18,986,497.31x = 269,473,697,557,140.94 - Step 5: Solve for x
x = 269,473,697,557,140.94/18,986,497.31 - Step 6: Final answer
x = 14,192,912.63
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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.