Finding the Fourth Proportional to 55,147,431.70, 82,721,147.55 and 14,757,915.70
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Solution
The fourth proportional to 55,147,431.70, 82,721,147.55 and 14,757,915.70 is: 22,136,873.55
Step by Step Solution
- Step 1: Write the proportion equation
55,147,431.70 : 82,721,147.55 = 14,757,915.70 : x - Step 2: Convert to fraction form
55,147,431.70/82,721,147.55 = 14,757,915.70/x - Step 3: Cross multiply
55,147,431.70x = 82,721,147.55 × 14,757,915.70 - Step 4: Simplify right side
55,147,431.70x = 1,220,791,722,150,161.50 - Step 5: Solve for x
x = 1,220,791,722,150,161.50/55,147,431.70 - Step 6: Final answer
x = 22,136,873.55
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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.