Finding the Fourth Proportional to 18,186,622.80, 27,290,431.80 and 6,828,219.60
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Solution
The fourth proportional to 18,186,622.80, 27,290,431.80 and 6,828,219.60 is: 10,246,270.75
Step by Step Solution
- Step 1: Write the proportion equation
18,186,622.80 : 27,290,431.80 = 6,828,219.60 : x - Step 2: Convert to fraction form
18,186,622.80/27,290,431.80 = 6,828,219.60/x - Step 3: Cross multiply
18,186,622.80x = 27,290,431.80 × 6,828,219.60 - Step 4: Simplify right side
18,186,622.80x = 186,345,061,309,223.28 - Step 5: Solve for x
x = 186,345,061,309,223.28/18,186,622.80 - Step 6: Final answer
x = 10,246,270.75
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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.