Finding the Fourth Proportional to 18,979,566.38, 28,463,461.40 and 6,847,452.66
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Solution
The fourth proportional to 18,979,566.38, 28,463,461.40 and 6,847,452.66 is: 10,269,054.66
Step by Step Solution
- Step 1: Write the proportion equation
18,979,566.38 : 28,463,461.40 = 6,847,452.66 : x - Step 2: Convert to fraction form
18,979,566.38/28,463,461.40 = 6,847,452.66/x - Step 3: Cross multiply
18,979,566.38x = 28,463,461.40 × 6,847,452.66 - Step 4: Simplify right side
18,979,566.38x = 194,902,204,493,355.97 - Step 5: Solve for x
x = 194,902,204,493,355.97/18,979,566.38 - Step 6: Final answer
x = 10,269,054.66
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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.