Finding the Fourth Proportional to 8,161,985.20, 12,243,438.60 and 2,482,394.80
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Solution
The fourth proportional to 8,161,985.20, 12,243,438.60 and 2,482,394.80 is: 3,723,732.35
Step by Step Solution
- Step 1: Write the proportion equation
8,161,985.20 : 12,243,438.60 = 2,482,394.80 : x - Step 2: Convert to fraction form
8,161,985.20/12,243,438.60 = 2,482,394.80/x - Step 3: Cross multiply
8,161,985.20x = 12,243,438.60 × 2,482,394.80 - Step 4: Simplify right side
8,161,985.20x = 30,393,048,314,759.28 - Step 5: Solve for x
x = 30,393,048,314,759.28/8,161,985.20 - Step 6: Final answer
x = 3,723,732.35
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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.