Finding the Fourth Proportional to 18,387,451.48, 27,571,599.42 and 6,863,441.80
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Solution
The fourth proportional to 18,387,451.48, 27,571,599.42 and 6,863,441.80 is: 10,291,587.62
Step by Step Solution
- Step 1: Write the proportion equation
18,387,451.48 : 27,571,599.42 = 6,863,441.80 : x - Step 2: Convert to fraction form
18,387,451.48/27,571,599.42 = 6,863,441.80/x - Step 3: Cross multiply
18,387,451.48x = 27,571,599.42 × 6,863,441.80 - Step 4: Simplify right side
18,387,451.48x = 189,236,067,952,083.75 - Step 5: Solve for x
x = 189,236,067,952,083.75/18,387,451.48 - Step 6: Final answer
x = 10,291,587.62
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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.