Finding the Fourth Proportional to 212,767,211.70, 319,150,817.55 and 74,748,662.49
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Solution
The fourth proportional to 212,767,211.70, 319,150,817.55 and 74,748,662.49 is: 112,122,993.74
Step by Step Solution
- Step 1: Write the proportion equation
212,767,211.70 : 319,150,817.55 = 74,748,662.49 : x - Step 2: Convert to fraction form
212,767,211.70/319,150,817.55 = 74,748,662.49/x - Step 3: Cross multiply
212,767,211.70x = 319,150,817.55 × 74,748,662.49 - Step 4: Simplify right side
212,767,211.70x = 23,856,096,745,649,336 - Step 5: Solve for x
x = 23,856,096,745,649,336/212,767,211.70 - Step 6: Final answer
x = 112,122,993.74
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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.