Finding the Fourth Proportional to 2,860,796.94, 3,951,396.64 and 2,138,853.66
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Solution
The fourth proportional to 2,860,796.94, 3,951,396.64 and 2,138,853.66 is: 2,954,232.45
Step by Step Solution
- Step 1: Write the proportion equation
2,860,796.94 : 3,951,396.64 = 2,138,853.66 : x - Step 2: Convert to fraction form
2,860,796.94/3,951,396.64 = 2,138,853.66/x - Step 3: Cross multiply
2,860,796.94x = 3,951,396.64 × 2,138,853.66 - Step 4: Simplify right side
2,860,796.94x = 8,451,459,165,575.70 - Step 5: Solve for x
x = 8,451,459,165,575.70/2,860,796.94 - Step 6: Final answer
x = 2,954,232.45
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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.