Finding the Fourth Proportional to 15,276,611.92, 21,081,304.05 and 8,401,093.98
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Solution
The fourth proportional to 15,276,611.92, 21,081,304.05 and 8,401,093.98 is: 11,593,278.50
Step by Step Solution
- Step 1: Write the proportion equation
15,276,611.92 : 21,081,304.05 = 8,401,093.98 : x - Step 2: Convert to fraction form
15,276,611.92/21,081,304.05 = 8,401,093.98/x - Step 3: Cross multiply
15,276,611.92x = 21,081,304.05 × 8,401,093.98 - Step 4: Simplify right side
15,276,611.92x = 177,106,016,545,004.62 - Step 5: Solve for x
x = 177,106,016,545,004.62/15,276,611.92 - Step 6: Final answer
x = 11,593,278.50
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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.