Finding the Fourth Proportional to 5,171,827.22, 7,137,121.45 and 2,997,631.49
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Solution
The fourth proportional to 5,171,827.22, 7,137,121.45 and 2,997,631.49 is: 4,136,731.39
Step by Step Solution
- Step 1: Write the proportion equation
5,171,827.22 : 7,137,121.45 = 2,997,631.49 : x - Step 2: Convert to fraction form
5,171,827.22/7,137,121.45 = 2,997,631.49/x - Step 3: Cross multiply
5,171,827.22x = 7,137,121.45 × 2,997,631.49 - Step 4: Simplify right side
5,171,827.22x = 21,394,460,006,474.46 - Step 5: Solve for x
x = 21,394,460,006,474.46/5,171,827.22 - Step 6: Final answer
x = 4,136,731.39
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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.