Finding the Fourth Proportional to 13,728,184.07, 18,946,574.87 and 7,926,958.80
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Solution
The fourth proportional to 13,728,184.07, 18,946,574.87 and 7,926,958.80 is: 10,940,173.71
Step by Step Solution
- Step 1: Write the proportion equation
13,728,184.07 : 18,946,574.87 = 7,926,958.80 : x - Step 2: Convert to fraction form
13,728,184.07/18,946,574.87 = 7,926,958.80/x - Step 3: Cross multiply
13,728,184.07x = 18,946,574.87 × 7,926,958.80 - Step 4: Simplify right side
13,728,184.07x = 150,188,718,355,970.53 - Step 5: Solve for x
x = 150,188,718,355,970.53/13,728,184.07 - Step 6: Final answer
x = 10,940,173.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.