Finding the Fourth Proportional to 5,667,805.66, 7,821,276.69 and 3,220,076.99
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Solution
The fourth proportional to 5,667,805.66, 7,821,276.69 and 3,220,076.99 is: 4,443,538.58
Step by Step Solution
- Step 1: Write the proportion equation
5,667,805.66 : 7,821,276.69 = 3,220,076.99 : x - Step 2: Convert to fraction form
5,667,805.66/7,821,276.69 = 3,220,076.99/x - Step 3: Cross multiply
5,667,805.66x = 7,821,276.69 × 3,220,076.99 - Step 4: Simplify right side
5,667,805.66x = 25,185,113,101,892.37 - Step 5: Solve for x
x = 25,185,113,101,892.37/5,667,805.66 - Step 6: Final answer
x = 4,443,538.58
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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.