Finding the Fourth Proportional to 8,517,974.09, 12,776,988.42 and 2,128,227.12
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Solution
The fourth proportional to 8,517,974.09, 12,776,988.42 and 2,128,227.12 is: 3,192,347.50
Step by Step Solution
- Step 1: Write the proportion equation
8,517,974.09 : 12,776,988.42 = 2,128,227.12 : x - Step 2: Convert to fraction form
8,517,974.09/12,776,988.42 = 2,128,227.12/x - Step 3: Cross multiply
8,517,974.09x = 12,776,988.42 × 2,128,227.12 - Step 4: Simplify right side
8,517,974.09x = 27,192,333,267,369.95 - Step 5: Solve for x
x = 27,192,333,267,369.95/8,517,974.09 - Step 6: Final answer
x = 3,192,347.50
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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.