Finding the Fourth Proportional to 12,621,141.64, 18,931,711.31 and 3,036,520.18
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Solution
The fourth proportional to 12,621,141.64, 18,931,711.31 and 3,036,520.18 is: 4,554,779.99
Step by Step Solution
- Step 1: Write the proportion equation
12,621,141.64 : 18,931,711.31 = 3,036,520.18 : x - Step 2: Convert to fraction form
12,621,141.64/18,931,711.31 = 3,036,520.18/x - Step 3: Cross multiply
12,621,141.64x = 18,931,711.31 × 3,036,520.18 - Step 4: Simplify right side
12,621,141.64x = 57,486,523,324,908.07 - Step 5: Solve for x
x = 57,486,523,324,908.07/12,621,141.64 - Step 6: Final answer
x = 4,554,779.99
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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.