Finding the Fourth Proportional to 6,649,517.75, 9,974,276.62 and 5,135,409.14
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Solution
The fourth proportional to 6,649,517.75, 9,974,276.62 and 5,135,409.14 is: 7,703,113.70
Step by Step Solution
- Step 1: Write the proportion equation
6,649,517.75 : 9,974,276.62 = 5,135,409.14 : x - Step 2: Convert to fraction form
6,649,517.75/9,974,276.62 = 5,135,409.14/x - Step 3: Cross multiply
6,649,517.75x = 9,974,276.62 × 5,135,409.14 - Step 4: Simplify right side
6,649,517.75x = 51,221,991,256,526.40 - Step 5: Solve for x
x = 51,221,991,256,526.40/6,649,517.75 - Step 6: Final answer
x = 7,703,113.70
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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.