Finding the Fourth Proportional to 10,362,711.20, 15,544,066.80 and 8,197,872.80
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Solution
The fourth proportional to 10,362,711.20, 15,544,066.80 and 8,197,872.80 is: 12,296,809.20
Step by Step Solution
- Step 1: Write the proportion equation
10,362,711.20 : 15,544,066.80 = 8,197,872.80 : x - Step 2: Convert to fraction form
10,362,711.20/15,544,066.80 = 8,197,872.80/x - Step 3: Cross multiply
10,362,711.20x = 15,544,066.80 × 8,197,872.80 - Step 4: Simplify right side
10,362,711.20x = 127,428,282,421,103.05 - Step 5: Solve for x
x = 127,428,282,421,103.05/10,362,711.20 - Step 6: Final answer
x = 12,296,809.20
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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.