Finding the Fourth Proportional to 10,121,165.80, 15,185,247.90 and 9,771,245.80
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Solution
The fourth proportional to 10,121,165.80, 15,185,247.90 and 9,771,245.80 is: 14,660,246.92
Step by Step Solution
- Step 1: Write the proportion equation
10,121,165.80 : 15,185,247.90 = 9,771,245.80 : x - Step 2: Convert to fraction form
10,121,165.80/15,185,247.90 = 9,771,245.80/x - Step 3: Cross multiply
10,121,165.80x = 15,185,247.90 × 9,771,245.80 - Step 4: Simplify right side
10,121,165.80x = 148,378,789,764,833.84 - Step 5: Solve for x
x = 148,378,789,764,833.84/10,121,165.80 - Step 6: Final answer
x = 14,660,246.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.