Finding the Fourth Proportional to 13,286,566.81, 19,929,850.44 and 3,189,187.81
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Solution
The fourth proportional to 13,286,566.81, 19,929,850.44 and 3,189,187.81 is: 4,783,781.77
Step by Step Solution
- Step 1: Write the proportion equation
13,286,566.81 : 19,929,850.44 = 3,189,187.81 : x - Step 2: Convert to fraction form
13,286,566.81/19,929,850.44 = 3,189,187.81/x - Step 3: Cross multiply
13,286,566.81x = 19,929,850.44 × 3,189,187.81 - Step 4: Simplify right side
13,286,566.81x = 63,560,036,078,371.14 - Step 5: Solve for x
x = 63,560,036,078,371.14/13,286,566.81 - Step 6: Final answer
x = 4,783,781.77
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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.