Finding the Fourth Proportional to 12,145,823.29, 16,761,236.94 and 6,639,219.94
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Solution
The fourth proportional to 12,145,823.29, 16,761,236.94 and 6,639,219.94 is: 9,162,123.95
Step by Step Solution
- Step 1: Write the proportion equation
12,145,823.29 : 16,761,236.94 = 6,639,219.94 : x - Step 2: Convert to fraction form
12,145,823.29/16,761,236.94 = 6,639,219.94/x - Step 3: Cross multiply
12,145,823.29x = 16,761,236.94 × 6,639,219.94 - Step 4: Simplify right side
12,145,823.29x = 111,281,538,511,112.59 - Step 5: Solve for x
x = 111,281,538,511,112.59/12,145,823.29 - Step 6: Final answer
x = 9,162,123.95
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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.