Finding the Fourth Proportional to 72,543,868.24, 100,102,914.84 and 41,171,939.68
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Solution
The fourth proportional to 72,543,868.24, 100,102,914.84 and 41,171,939.68 is: 56,812,950.17
Step by Step Solution
- Step 1: Write the proportion equation
72,543,868.24 : 100,102,914.84 = 41,171,939.68 : x - Step 2: Convert to fraction form
72,543,868.24/100,102,914.84 = 41,171,939.68/x - Step 3: Cross multiply
72,543,868.24x = 100,102,914.84 × 41,171,939.68 - Step 4: Simplify right side
72,543,868.24x = 4,121,431,171,584,657 - Step 5: Solve for x
x = 4,121,431,171,584,657/72,543,868.24 - Step 6: Final answer
x = 56,812,950.17
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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.