Finding the Fourth Proportional to 7,186,278.41, 9,920,620.64 and 4,434,481.54
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Solution
The fourth proportional to 7,186,278.41, 9,920,620.64 and 4,434,481.54 is: 6,121,779.12
Step by Step Solution
- Step 1: Write the proportion equation
7,186,278.41 : 9,920,620.64 = 4,434,481.54 : x - Step 2: Convert to fraction form
7,186,278.41/9,920,620.64 = 4,434,481.54/x - Step 3: Cross multiply
7,186,278.41x = 9,920,620.64 × 4,434,481.54 - Step 4: Simplify right side
7,186,278.41x = 43,992,809,079,707.63 - Step 5: Solve for x
x = 43,992,809,079,707.63/7,186,278.41 - Step 6: Final answer
x = 6,121,779.12
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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.