Finding the Fourth Proportional to 5,728,659.84, 7,903,313.10 and 3,279,962.21
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Solution
The fourth proportional to 5,728,659.84, 7,903,313.10 and 3,279,962.21 is: 4,525,066.77
Step by Step Solution
- Step 1: Write the proportion equation
5,728,659.84 : 7,903,313.10 = 3,279,962.21 : x - Step 2: Convert to fraction form
5,728,659.84/7,903,313.10 = 3,279,962.21/x - Step 3: Cross multiply
5,728,659.84x = 7,903,313.10 × 3,279,962.21 - Step 4: Simplify right side
5,728,659.84x = 25,922,568,262,281.39 - Step 5: Solve for x
x = 25,922,568,262,281.39/5,728,659.84 - Step 6: Final answer
x = 4,525,066.77
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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.