Finding the Fourth Proportional to 7,039,548.75, 9,714,577.28 and 3,820,284.75
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Solution
The fourth proportional to 7,039,548.75, 9,714,577.28 and 3,820,284.75 is: 5,271,992.96
Step by Step Solution
- Step 1: Write the proportion equation
7,039,548.75 : 9,714,577.28 = 3,820,284.75 : x - Step 2: Convert to fraction form
7,039,548.75/9,714,577.28 = 3,820,284.75/x - Step 3: Cross multiply
7,039,548.75x = 9,714,577.28 × 3,820,284.75 - Step 4: Simplify right side
7,039,548.75x = 37,112,451,416,379.05 - Step 5: Solve for x
x = 37,112,451,416,379.05/7,039,548.75 - Step 6: Final answer
x = 5,271,992.96
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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.