Finding the Fourth Proportional to 5,190,189.48, 7,162,476.84 and 2,898,437.04
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Solution
The fourth proportional to 5,190,189.48, 7,162,476.84 and 2,898,437.04 is: 3,999,851.69
Step by Step Solution
- Step 1: Write the proportion equation
5,190,189.48 : 7,162,476.84 = 2,898,437.04 : x - Step 2: Convert to fraction form
5,190,189.48/7,162,476.84 = 2,898,437.04/x - Step 3: Cross multiply
5,190,189.48x = 7,162,476.84 × 2,898,437.04 - Step 4: Simplify right side
5,190,189.48x = 20,759,988,171,198.15 - Step 5: Solve for x
x = 20,759,988,171,198.15/5,190,189.48 - Step 6: Final answer
x = 3,999,851.69
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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.