Finding the Fourth Proportional to 6,393,403.40, 8,823,069.78 and 3,816,579.68
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Solution
The fourth proportional to 6,393,403.40, 8,823,069.78 and 3,816,579.68 is: 5,266,983.28
Step by Step Solution
- Step 1: Write the proportion equation
6,393,403.40 : 8,823,069.78 = 3,816,579.68 : x - Step 2: Convert to fraction form
6,393,403.40/8,823,069.78 = 3,816,579.68/x - Step 3: Cross multiply
6,393,403.40x = 8,823,069.78 × 3,816,579.68 - Step 4: Simplify right side
6,393,403.40x = 33,673,948,837,570.07 - Step 5: Solve for x
x = 33,673,948,837,570.07/6,393,403.40 - Step 6: Final answer
x = 5,266,983.28
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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.