Finding the Fourth Proportional to 11,537,744.70, 15,926,990.21 and 7,188,979.62
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Solution
The fourth proportional to 11,537,744.70, 15,926,990.21 and 7,188,979.62 is: 9,923,846.56
Step by Step Solution
- Step 1: Write the proportion equation
11,537,744.70 : 15,926,990.21 = 7,188,979.62 : x - Step 2: Convert to fraction form
11,537,744.70/15,926,990.21 = 7,188,979.62/x - Step 3: Cross multiply
11,537,744.70x = 15,926,990.21 × 7,188,979.62 - Step 4: Simplify right side
11,537,744.70x = 114,498,808,027,629.53 - Step 5: Solve for x
x = 114,498,808,027,629.53/11,537,744.70 - Step 6: Final answer
x = 9,923,846.56
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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.