Finding the Fourth Proportional to 5,171,828.16, 7,137,122.79 and 2,997,632.43
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Solution
The fourth proportional to 5,171,828.16, 7,137,122.79 and 2,997,632.43 is: 4,136,732.71
Step by Step Solution
- Step 1: Write the proportion equation
5,171,828.16 : 7,137,122.79 = 2,997,632.43 : x - Step 2: Convert to fraction form
5,171,828.16/7,137,122.79 = 2,997,632.43/x - Step 3: Cross multiply
5,171,828.16x = 7,137,122.79 × 2,997,632.43 - Step 4: Simplify right side
5,171,828.16x = 21,394,470,732,196.08 - Step 5: Solve for x
x = 21,394,470,732,196.08/5,171,828.16 - Step 6: Final answer
x = 4,136,732.71
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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.