Finding the Fourth Proportional to 18,124,943.36, 24,999,687.36 and 11,928,015.68
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Solution
The fourth proportional to 18,124,943.36, 24,999,687.36 and 11,928,015.68 is: 16,452,281.09
Step by Step Solution
- Step 1: Write the proportion equation
18,124,943.36 : 24,999,687.36 = 11,928,015.68 : x - Step 2: Convert to fraction form
18,124,943.36/24,999,687.36 = 11,928,015.68/x - Step 3: Cross multiply
18,124,943.36x = 24,999,687.36 × 11,928,015.68 - Step 4: Simplify right side
18,124,943.36x = 298,196,662,825,177.81 - Step 5: Solve for x
x = 298,196,662,825,177.81/18,124,943.36 - Step 6: Final answer
x = 16,452,281.09
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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.