Finding the Fourth Proportional to 143,607,584.80, 215,405,847.60 and 47,869,472.80
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Solution
The fourth proportional to 143,607,584.80, 215,405,847.60 and 47,869,472.80 is: 71,802,365.99
Step by Step Solution
- Step 1: Write the proportion equation
143,607,584.80 : 215,405,847.60 = 47,869,472.80 : x - Step 2: Convert to fraction form
143,607,584.80/215,405,847.60 = 47,869,472.80/x - Step 3: Cross multiply
143,607,584.80x = 215,405,847.60 × 47,869,472.80 - Step 4: Simplify right side
143,607,584.80x = 10,311,364,362,649,144 - Step 5: Solve for x
x = 10,311,364,362,649,144/143,607,584.80 - Step 6: Final answer
x = 71,802,365.99
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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.