Finding the Fourth Proportional to 4,827,761.40, 7,245,789.30 and 2,136,228.60
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Solution
The fourth proportional to 4,827,761.40, 7,245,789.30 and 2,136,228.60 is: 3,206,177.99
Step by Step Solution
- Step 1: Write the proportion equation
4,827,761.40 : 7,245,789.30 = 2,136,228.60 : x - Step 2: Convert to fraction form
4,827,761.40/7,245,789.30 = 2,136,228.60/x - Step 3: Cross multiply
4,827,761.40x = 7,245,789.30 × 2,136,228.60 - Step 4: Simplify right side
4,827,761.40x = 15,478,662,332,233.98 - Step 5: Solve for x
x = 15,478,662,332,233.98/4,827,761.40 - Step 6: Final answer
x = 3,206,177.99
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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.