Finding the Fourth Proportional to 18,738,116.70, 28,107,175.05 and 11,179,844.70
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Solution
The fourth proportional to 18,738,116.70, 28,107,175.05 and 11,179,844.70 is: 16,769,767.05
Step by Step Solution
- Step 1: Write the proportion equation
18,738,116.70 : 28,107,175.05 = 11,179,844.70 : x - Step 2: Convert to fraction form
18,738,116.70/28,107,175.05 = 11,179,844.70/x - Step 3: Cross multiply
18,738,116.70x = 28,107,175.05 × 11,179,844.70 - Step 4: Simplify right side
18,738,116.70x = 314,233,852,014,714.75 - Step 5: Solve for x
x = 314,233,852,014,714.75/18,738,116.70 - Step 6: Final answer
x = 16,769,767.05
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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.