Finding the Fourth Proportional to 11,364,040.80, 15,678,486.36 and 6,468,037.92
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Solution
The fourth proportional to 11,364,040.80, 15,678,486.36 and 6,468,037.92 is: 8,923,678.30
Step by Step Solution
- Step 1: Write the proportion equation
11,364,040.80 : 15,678,486.36 = 6,468,037.92 : x - Step 2: Convert to fraction form
11,364,040.80/15,678,486.36 = 6,468,037.92/x - Step 3: Cross multiply
11,364,040.80x = 15,678,486.36 × 6,468,037.92 - Step 4: Simplify right side
11,364,040.80x = 101,409,044,304,682.77 - Step 5: Solve for x
x = 101,409,044,304,682.77/11,364,040.80 - Step 6: Final answer
x = 8,923,678.30
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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.