Finding the Fourth Proportional to 5,440,781.40, 8,154,173.70 and 3,308,602.20
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Solution
The fourth proportional to 5,440,781.40, 8,154,173.70 and 3,308,602.20 is: 4,958,647.49
Step by Step Solution
- Step 1: Write the proportion equation
5,440,781.40 : 8,154,173.70 = 3,308,602.20 : x - Step 2: Convert to fraction form
5,440,781.40/8,154,173.70 = 3,308,602.20/x - Step 3: Cross multiply
5,440,781.40x = 8,154,173.70 × 3,308,602.20 - Step 4: Simplify right side
5,440,781.40x = 26,978,917,043,002.14 - Step 5: Solve for x
x = 26,978,917,043,002.14/5,440,781.40 - Step 6: Final answer
x = 4,958,647.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.