Finding the Fourth Proportional to 49,661,574.80, 68,538,939.36 and 30,081,888.68
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Solution
The fourth proportional to 49,661,574.80, 68,538,939.36 and 30,081,888.68 is: 41,516,620.29
Step by Step Solution
- Step 1: Write the proportion equation
49,661,574.80 : 68,538,939.36 = 30,081,888.68 : x - Step 2: Convert to fraction form
49,661,574.80/68,538,939.36 = 30,081,888.68/x - Step 3: Cross multiply
49,661,574.80x = 68,538,939.36 × 30,081,888.68 - Step 4: Simplify right side
49,661,574.80x = 2,061,780,744,072,790.50 - Step 5: Solve for x
x = 2,061,780,744,072,790.50/49,661,574.80 - Step 6: Final answer
x = 41,516,620.29
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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.