Finding the Fourth Proportional to 5,180,236.84, 7,768,489.02 and 2,188,654.12
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Solution
The fourth proportional to 5,180,236.84, 7,768,489.02 and 2,188,654.12 is: 3,282,192.69
Step by Step Solution
- Step 1: Write the proportion equation
5,180,236.84 : 7,768,489.02 = 2,188,654.12 : x - Step 2: Convert to fraction form
5,180,236.84/7,768,489.02 = 2,188,654.12/x - Step 3: Cross multiply
5,180,236.84x = 7,768,489.02 × 2,188,654.12 - Step 4: Simplify right side
5,180,236.84x = 17,002,535,499,797.76 - Step 5: Solve for x
x = 17,002,535,499,797.76/5,180,236.84 - Step 6: Final answer
x = 3,282,192.69
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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.