Finding the Fourth Proportional to 18,409,922.26, 27,615,021.76 and 8,172,029.70
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Solution
The fourth proportional to 18,409,922.26, 27,615,021.76 and 8,172,029.70 is: 12,258,105.97
Step by Step Solution
- Step 1: Write the proportion equation
18,409,922.26 : 27,615,021.76 = 8,172,029.70 : x - Step 2: Convert to fraction form
18,409,922.26/27,615,021.76 = 8,172,029.70/x - Step 3: Cross multiply
18,409,922.26x = 27,615,021.76 × 8,172,029.70 - Step 4: Simplify right side
18,409,922.26x = 225,670,777,988,866.28 - Step 5: Solve for x
x = 225,670,777,988,866.28/18,409,922.26 - Step 6: Final answer
x = 12,258,105.97
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.