Finding the Fourth Proportional to 13,363,687.92, 18,441,888.64 and 7,252,116.44
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Solution
The fourth proportional to 13,363,687.92, 18,441,888.64 and 7,252,116.44 is: 10,007,920.31
Step by Step Solution
- Step 1: Write the proportion equation
13,363,687.92 : 18,441,888.64 = 7,252,116.44 : x - Step 2: Convert to fraction form
13,363,687.92/18,441,888.64 = 7,252,116.44/x - Step 3: Cross multiply
13,363,687.92x = 18,441,888.64 × 7,252,116.44 - Step 4: Simplify right side
13,363,687.92x = 133,742,723,790,793.25 - Step 5: Solve for x
x = 133,742,723,790,793.25/13,363,687.92 - Step 6: Final answer
x = 10,007,920.31
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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.