Finding the Fourth Proportional to 5,380,405.73, 7,427,610.67 and 3,727,805.87
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Solution
The fourth proportional to 5,380,405.73, 7,427,610.67 and 3,727,805.87 is: 5,146,208.67
Step by Step Solution
- Step 1: Write the proportion equation
5,380,405.73 : 7,427,610.67 = 3,727,805.87 : x - Step 2: Convert to fraction form
5,380,405.73/7,427,610.67 = 3,727,805.87/x - Step 3: Cross multiply
5,380,405.73x = 7,427,610.67 × 3,727,805.87 - Step 4: Simplify right side
5,380,405.73x = 27,688,690,609,243.07 - Step 5: Solve for x
x = 27,688,690,609,243.07/5,380,405.73 - Step 6: Final answer
x = 5,146,208.67
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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.