Finding the Fourth Proportional to 39,192,939.87, 54,086,467.37 and 21,552,980.01
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Solution
The fourth proportional to 39,192,939.87, 54,086,467.37 and 21,552,980.01 is: 29,743,228.09
Step by Step Solution
- Step 1: Write the proportion equation
39,192,939.87 : 54,086,467.37 = 21,552,980.01 : x - Step 2: Convert to fraction form
39,192,939.87/54,086,467.37 = 21,552,980.01/x - Step 3: Cross multiply
39,192,939.87x = 54,086,467.37 × 21,552,980.01 - Step 4: Simplify right side
39,192,939.87x = 1,165,724,549,929,362.50 - Step 5: Solve for x
x = 1,165,724,549,929,362.50/39,192,939.87 - Step 6: Final answer
x = 29,743,228.09
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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.