Finding the Fourth Proportional to 25,624,601.14, 38,428,992.30 and 7,430,137.42
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Solution
The fourth proportional to 25,624,601.14, 38,428,992.30 and 7,430,137.42 is: 11,142,912.71
Step by Step Solution
- Step 1: Write the proportion equation
25,624,601.14 : 38,428,992.30 = 7,430,137.42 : x - Step 2: Convert to fraction form
25,624,601.14/38,428,992.30 = 7,430,137.42/x - Step 3: Cross multiply
25,624,601.14x = 38,428,992.30 × 7,430,137.42 - Step 4: Simplify right side
25,624,601.14x = 285,532,693,701,121.81 - Step 5: Solve for x
x = 285,532,693,701,121.81/25,624,601.14 - Step 6: Final answer
x = 11,142,912.71
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1.5x scale
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.