Finding the Fourth Proportional to 11,525,901.12, 15,905,682.72 and 6,369,620.80
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Solution
The fourth proportional to 11,525,901.12, 15,905,682.72 and 6,369,620.80 is: 8,790,043.09
Step by Step Solution
- Step 1: Write the proportion equation
11,525,901.12 : 15,905,682.72 = 6,369,620.80 : x - Step 2: Convert to fraction form
11,525,901.12/15,905,682.72 = 6,369,620.80/x - Step 3: Cross multiply
11,525,901.12x = 15,905,682.72 × 6,369,620.80 - Step 4: Simplify right side
11,525,901.12x = 101,313,167,491,512.58 - Step 5: Solve for x
x = 101,313,167,491,512.58/11,525,901.12 - Step 6: Final answer
x = 8,790,043.09
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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.