Finding the Fourth Proportional to 18,186,621.30, 27,290,429.55 and 6,828,218.10
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Solution
The fourth proportional to 18,186,621.30, 27,290,429.55 and 6,828,218.10 is: 10,246,268.50
Step by Step Solution
- Step 1: Write the proportion equation
18,186,621.30 : 27,290,429.55 = 6,828,218.10 : x - Step 2: Convert to fraction form
18,186,621.30/27,290,429.55 = 6,828,218.10/x - Step 3: Cross multiply
18,186,621.30x = 27,290,429.55 × 6,828,218.10 - Step 4: Simplify right side
18,186,621.30x = 186,345,005,010,084.84 - Step 5: Solve for x
x = 186,345,005,010,084.84/18,186,621.30 - Step 6: Final answer
x = 10,246,268.50
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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.