Finding the Fourth Proportional to 5,379,424.10, 7,420,288.46 and 3,285,284.12
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Solution
The fourth proportional to 5,379,424.10, 7,420,288.46 and 3,285,284.12 is: 4,531,666.47
Step by Step Solution
- Step 1: Write the proportion equation
5,379,424.10 : 7,420,288.46 = 3,285,284.12 : x - Step 2: Convert to fraction form
5,379,424.10/7,420,288.46 = 3,285,284.12/x - Step 3: Cross multiply
5,379,424.10x = 7,420,288.46 × 3,285,284.12 - Step 4: Simplify right side
5,379,424.10x = 24,377,755,843,457.26 - Step 5: Solve for x
x = 24,377,755,843,457.26/5,379,424.10 - Step 6: Final answer
x = 4,531,666.47
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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.