Finding the Fourth Proportional to 5,728,716.16, 7,905,836.18 and 3,281,800.12
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Solution
The fourth proportional to 5,728,716.16, 7,905,836.18 and 3,281,800.12 is: 4,529,003.25
Step by Step Solution
- Step 1: Write the proportion equation
5,728,716.16 : 7,905,836.18 = 3,281,800.12 : x - Step 2: Convert to fraction form
5,728,716.16/7,905,836.18 = 3,281,800.12/x - Step 3: Cross multiply
5,728,716.16x = 7,905,836.18 × 3,281,800.12 - Step 4: Simplify right side
5,728,716.16x = 25,945,374,112,664.25 - Step 5: Solve for x
x = 25,945,374,112,664.25/5,728,716.16 - Step 6: Final answer
x = 4,529,003.25
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1.5x scale
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.