Finding the Fourth Proportional to 13,358,582.94, 18,434,846.79 and 7,557,244.68
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Solution
The fourth proportional to 13,358,582.94, 18,434,846.79 and 7,557,244.68 is: 10,428,998.98
Step by Step Solution
- Step 1: Write the proportion equation
13,358,582.94 : 18,434,846.79 = 7,557,244.68 : x - Step 2: Convert to fraction form
13,358,582.94/18,434,846.79 = 7,557,244.68/x - Step 3: Cross multiply
13,358,582.94x = 18,434,846.79 × 7,557,244.68 - Step 4: Simplify right side
13,358,582.94x = 139,316,647,830,342.56 - Step 5: Solve for x
x = 139,316,647,830,342.56/13,358,582.94 - Step 6: Final answer
x = 10,428,998.98
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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.