Finding the Fourth Proportional to 12,755,654.87, 19,133,553.74 and 3,171,033.05
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Solution
The fourth proportional to 12,755,654.87, 19,133,553.74 and 3,171,033.05 is: 4,756,567.33
Step by Step Solution
- Step 1: Write the proportion equation
12,755,654.87 : 19,133,553.74 = 3,171,033.05 : x - Step 2: Convert to fraction form
12,755,654.87/19,133,553.74 = 3,171,033.05/x - Step 3: Cross multiply
12,755,654.87x = 19,133,553.74 × 3,171,033.05 - Step 4: Simplify right side
12,755,654.87x = 60,673,131,161,968.17 - Step 5: Solve for x
x = 60,673,131,161,968.17/12,755,654.87 - Step 6: Final answer
x = 4,756,567.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.