Finding the Fourth Proportional to 18,526,808.92, 27,790,278.18 and 13,119,103.48
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Solution
The fourth proportional to 18,526,808.92, 27,790,278.18 and 13,119,103.48 is: 19,678,701.11
Step by Step Solution
- Step 1: Write the proportion equation
18,526,808.92 : 27,790,278.18 = 13,119,103.48 : x - Step 2: Convert to fraction form
18,526,808.92/27,790,278.18 = 13,119,103.48/x - Step 3: Cross multiply
18,526,808.92x = 27,790,278.18 × 13,119,103.48 - Step 4: Simplify right side
18,526,808.92x = 364,583,535,181,406.06 - Step 5: Solve for x
x = 364,583,535,181,406.06/18,526,808.92 - Step 6: Final answer
x = 19,678,701.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.