Finding the Fourth Proportional to 5,230,516.36, 7,218,297.30 and 2,938,631.08
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Solution
The fourth proportional to 5,230,516.36, 7,218,297.30 and 2,938,631.08 is: 4,055,414.67
Step by Step Solution
- Step 1: Write the proportion equation
5,230,516.36 : 7,218,297.30 = 2,938,631.08 : x - Step 2: Convert to fraction form
5,230,516.36/7,218,297.30 = 2,938,631.08/x - Step 3: Cross multiply
5,230,516.36x = 7,218,297.30 × 2,938,631.08 - Step 4: Simplify right side
5,230,516.36x = 21,211,912,790,460.09 - Step 5: Solve for x
x = 21,211,912,790,460.09/5,230,516.36 - Step 6: Final answer
x = 4,055,414.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.