Finding the Fourth Proportional to 5,197,799.88, 7,172,599.68 and 3,022,188.66
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Solution
The fourth proportional to 5,197,799.88, 7,172,599.68 and 3,022,188.66 is: 4,170,408.62
Step by Step Solution
- Step 1: Write the proportion equation
5,197,799.88 : 7,172,599.68 = 3,022,188.66 : x - Step 2: Convert to fraction form
5,197,799.88/7,172,599.68 = 3,022,188.66/x - Step 3: Cross multiply
5,197,799.88x = 7,172,599.68 × 3,022,188.66 - Step 4: Simplify right side
5,197,799.88x = 21,676,949,415,615.63 - Step 5: Solve for x
x = 21,676,949,415,615.63/5,197,799.88 - Step 6: Final answer
x = 4,170,408.62
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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.