Finding the Fourth Proportional to 4,008,462.99, 5,531,686.29 and 2,172,915.60
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Solution
The fourth proportional to 4,008,462.99, 5,531,686.29 and 2,172,915.60 is: 2,998,627.52
Step by Step Solution
- Step 1: Write the proportion equation
4,008,462.99 : 5,531,686.29 = 2,172,915.60 : x - Step 2: Convert to fraction form
4,008,462.99/5,531,686.29 = 2,172,915.60/x - Step 3: Cross multiply
4,008,462.99x = 5,531,686.29 × 2,172,915.60 - Step 4: Simplify right side
4,008,462.99x = 12,019,887,433,847.12 - Step 5: Solve for x
x = 12,019,887,433,847.12/4,008,462.99 - Step 6: Final answer
x = 2,998,627.52
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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.