Finding the Fourth Proportional to 5,428,672.40, 8,147,601.30 and 2,236,089.80
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Solution
The fourth proportional to 5,428,672.40, 8,147,601.30 and 2,236,089.80 is: 3,356,026.45
Step by Step Solution
- Step 1: Write the proportion equation
5,428,672.40 : 8,147,601.30 = 2,236,089.80 : x - Step 2: Convert to fraction form
5,428,672.40/8,147,601.30 = 2,236,089.80/x - Step 3: Cross multiply
5,428,672.40x = 8,147,601.30 × 2,236,089.80 - Step 4: Simplify right side
5,428,672.40x = 18,218,768,161,396.74 - Step 5: Solve for x
x = 18,218,768,161,396.74/5,428,672.40 - Step 6: Final answer
x = 3,356,026.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.