Finding the Fourth Proportional to 13,268,908.62, 18,311,683.06 and 7,468,066.08
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Solution
The fourth proportional to 13,268,908.62, 18,311,683.06 and 7,468,066.08 is: 10,306,262.79
Step by Step Solution
- Step 1: Write the proportion equation
13,268,908.62 : 18,311,683.06 = 7,468,066.08 : x - Step 2: Convert to fraction form
13,268,908.62/18,311,683.06 = 7,468,066.08/x - Step 3: Cross multiply
13,268,908.62x = 18,311,683.06 × 7,468,066.08 - Step 4: Simplify right side
13,268,908.62x = 136,752,859,128,096.59 - Step 5: Solve for x
x = 136,752,859,128,096.59/13,268,908.62 - Step 6: Final answer
x = 10,306,262.79
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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.