Finding the Fourth Proportional to 3,818,936.80, 5,268,842.84 and 2,164,906.48
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Solution
The fourth proportional to 3,818,936.80, 5,268,842.84 and 2,164,906.48 is: 2,986,839.69
Step by Step Solution
- Step 1: Write the proportion equation
3,818,936.80 : 5,268,842.84 = 2,164,906.48 : x - Step 2: Convert to fraction form
3,818,936.80/5,268,842.84 = 2,164,906.48/x - Step 3: Cross multiply
3,818,936.80x = 5,268,842.84 × 2,164,906.48 - Step 4: Simplify right side
3,818,936.80x = 11,406,552,006,417.60 - Step 5: Solve for x
x = 11,406,552,006,417.60/3,818,936.80 - Step 6: Final answer
x = 2,986,839.69
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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.