Finding the Fourth Proportional to 5,431,362.90, 8,147,044.35 and 5,347,382.10
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Solution
The fourth proportional to 5,431,362.90, 8,147,044.35 and 5,347,382.10 is: 8,021,073.15
Step by Step Solution
- Step 1: Write the proportion equation
5,431,362.90 : 8,147,044.35 = 5,347,382.10 : x - Step 2: Convert to fraction form
5,431,362.90/8,147,044.35 = 5,347,382.10/x - Step 3: Cross multiply
5,431,362.90x = 8,147,044.35 × 5,347,382.10 - Step 4: Simplify right side
5,431,362.90x = 43,565,359,125,096.13 - Step 5: Solve for x
x = 43,565,359,125,096.13/5,431,362.90 - Step 6: Final answer
x = 8,021,073.15
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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.