Finding the Fourth Proportional to 49,664,832.55, 68,543,995.28 and 28,479,902.73
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Solution
The fourth proportional to 49,664,832.55, 68,543,995.28 and 28,479,902.73 is: 39,306,008.25
Step by Step Solution
- Step 1: Write the proportion equation
49,664,832.55 : 68,543,995.28 = 28,479,902.73 : x - Step 2: Convert to fraction form
49,664,832.55/68,543,995.28 = 28,479,902.73/x - Step 3: Cross multiply
49,664,832.55x = 68,543,995.28 × 28,479,902.73 - Step 4: Simplify right side
49,664,832.55x = 1,952,126,318,306,953.25 - Step 5: Solve for x
x = 1,952,126,318,306,953.25/49,664,832.55 - Step 6: Final answer
x = 39,306,008.25
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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.