Finding the Fourth Proportional to 3,430,630.40, 5,151,475.20 and 2,590,131.20
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Solution
The fourth proportional to 3,430,630.40, 5,151,475.20 and 2,590,131.20 is: 3,889,371.66
Step by Step Solution
- Step 1: Write the proportion equation
3,430,630.40 : 5,151,475.20 = 2,590,131.20 : x - Step 2: Convert to fraction form
3,430,630.40/5,151,475.20 = 2,590,131.20/x - Step 3: Cross multiply
3,430,630.40x = 5,151,475.20 × 2,590,131.20 - Step 4: Simplify right side
3,430,630.40x = 13,342,996,641,546.24 - Step 5: Solve for x
x = 13,342,996,641,546.24/3,430,630.40 - Step 6: Final answer
x = 3,889,371.66
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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.