Finding the Fourth Proportional to 7,981,749.41, 11,014,811.43 and 4,310,666.79
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Solution
The fourth proportional to 7,981,749.41, 11,014,811.43 and 4,310,666.79 is: 5,948,718.69
Step by Step Solution
- Step 1: Write the proportion equation
7,981,749.41 : 11,014,811.43 = 4,310,666.79 : x - Step 2: Convert to fraction form
7,981,749.41/11,014,811.43 = 4,310,666.79/x - Step 3: Cross multiply
7,981,749.41x = 11,014,811.43 × 4,310,666.79 - Step 4: Simplify right side
7,981,749.41x = 47,481,181,829,413.41 - Step 5: Solve for x
x = 47,481,181,829,413.41/7,981,749.41 - Step 6: Final answer
x = 5,948,718.69
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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.