Finding the Fourth Proportional to 8,197,810.80, 12,296,716.20 and 5,510,425.20
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Solution
The fourth proportional to 8,197,810.80, 12,296,716.20 and 5,510,425.20 is: 8,265,637.80
Step by Step Solution
- Step 1: Write the proportion equation
8,197,810.80 : 12,296,716.20 = 5,510,425.20 : x - Step 2: Convert to fraction form
8,197,810.80/12,296,716.20 = 5,510,425.20/x - Step 3: Cross multiply
8,197,810.80x = 12,296,716.20 × 5,510,425.20 - Step 4: Simplify right side
8,197,810.80x = 67,760,134,825,728.23 - Step 5: Solve for x
x = 67,760,134,825,728.23/8,197,810.80 - Step 6: Final answer
x = 8,265,637.80
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Double scale
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1.5x scale
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.