Finding the Fourth Proportional to 6,431,974.94, 8,876,142.87 and 3,531,553.67
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Solution
The fourth proportional to 6,431,974.94, 8,876,142.87 and 3,531,553.67 is: 4,873,553.65
Step by Step Solution
- Step 1: Write the proportion equation
6,431,974.94 : 8,876,142.87 = 3,531,553.67 : x - Step 2: Convert to fraction form
6,431,974.94/8,876,142.87 = 3,531,553.67/x - Step 3: Cross multiply
6,431,974.94x = 8,876,142.87 × 3,531,553.67 - Step 4: Simplify right side
6,431,974.94x = 31,346,574,927,992.83 - Step 5: Solve for x
x = 31,346,574,927,992.83/6,431,974.94 - Step 6: Final answer
x = 4,873,553.65
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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.