Finding the Fourth Proportional to 7,243,886.12, 9,994,382.88 and 4,342,218.26
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Solution
The fourth proportional to 7,243,886.12, 9,994,382.88 and 4,342,218.26 is: 5,990,954.45
Step by Step Solution
- Step 1: Write the proportion equation
7,243,886.12 : 9,994,382.88 = 4,342,218.26 : x - Step 2: Convert to fraction form
7,243,886.12/9,994,382.88 = 4,342,218.26/x - Step 3: Cross multiply
7,243,886.12x = 9,994,382.88 × 4,342,218.26 - Step 4: Simplify right side
7,243,886.12x = 43,397,791,788,995.48 - Step 5: Solve for x
x = 43,397,791,788,995.48/7,243,886.12 - Step 6: Final answer
x = 5,990,954.45
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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.