Finding the Fourth Proportional to 18,639,117.40, 27,942,054.90 and 7,276,923.40
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Solution
The fourth proportional to 18,639,117.40, 27,942,054.90 and 7,276,923.40 is: 10,908,895.99
Step by Step Solution
- Step 1: Write the proportion equation
18,639,117.40 : 27,942,054.90 = 7,276,923.40 : x - Step 2: Convert to fraction form
18,639,117.40/27,942,054.90 = 7,276,923.40/x - Step 3: Cross multiply
18,639,117.40x = 27,942,054.90 × 7,276,923.40 - Step 4: Simplify right side
18,639,117.40x = 203,332,193,145,894.66 - Step 5: Solve for x
x = 203,332,193,145,894.66/18,639,117.40 - Step 6: Final answer
x = 10,908,895.99
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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.