Finding the Fourth Proportional to 11,873,684.21, 16,385,715.78 and 6,441,176.21
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Solution
The fourth proportional to 11,873,684.21, 16,385,715.78 and 6,441,176.21 is: 8,888,840.30
Step by Step Solution
- Step 1: Write the proportion equation
11,873,684.21 : 16,385,715.78 = 6,441,176.21 : x - Step 2: Convert to fraction form
11,873,684.21/16,385,715.78 = 6,441,176.21/x - Step 3: Cross multiply
11,873,684.21x = 16,385,715.78 × 6,441,176.21 - Step 4: Simplify right side
11,873,684.21x = 105,543,282,665,957.59 - Step 5: Solve for x
x = 105,543,282,665,957.59/11,873,684.21 - Step 6: Final answer
x = 8,888,840.30
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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.