Finding the Fourth Proportional to 8,159,475.80, 12,239,213.70 and 3,907,947.80
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Solution
The fourth proportional to 8,159,475.80, 12,239,213.70 and 3,907,947.80 is: 5,861,921.70
Step by Step Solution
- Step 1: Write the proportion equation
8,159,475.80 : 12,239,213.70 = 3,907,947.80 : x - Step 2: Convert to fraction form
8,159,475.80/12,239,213.70 = 3,907,947.80/x - Step 3: Cross multiply
8,159,475.80x = 12,239,213.70 × 3,907,947.80 - Step 4: Simplify right side
8,159,475.80x = 47,830,208,252,644.85 - Step 5: Solve for x
x = 47,830,208,252,644.85/8,159,475.80 - Step 6: Final answer
x = 5,861,921.70
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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.