Finding the Fourth Proportional to 5,171,827.16, 7,137,121.41 and 2,997,631.43
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Solution
The fourth proportional to 5,171,827.16, 7,137,121.41 and 2,997,631.43 is: 4,136,731.33
Step by Step Solution
- Step 1: Write the proportion equation
5,171,827.16 : 7,137,121.41 = 2,997,631.43 : x - Step 2: Convert to fraction form
5,171,827.16/7,137,121.41 = 2,997,631.43/x - Step 3: Cross multiply
5,171,827.16x = 7,137,121.41 × 2,997,631.43 - Step 4: Simplify right side
5,171,827.16x = 21,394,459,422,656.31 - Step 5: Solve for x
x = 21,394,459,422,656.31/5,171,827.16 - Step 6: Final answer
x = 4,136,731.33
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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.