Finding the Fourth Proportional to 18,017,747.05, 27,028,095.59 and 5,238,236.11
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Solution
The fourth proportional to 18,017,747.05, 27,028,095.59 and 5,238,236.11 is: 7,857,782.99
Step by Step Solution
- Step 1: Write the proportion equation
18,017,747.05 : 27,028,095.59 = 5,238,236.11 : x - Step 2: Convert to fraction form
18,017,747.05/27,028,095.59 = 5,238,236.11/x - Step 3: Cross multiply
18,017,747.05x = 27,028,095.59 × 5,238,236.11 - Step 4: Simplify right side
18,017,747.05x = 141,579,546,277,878.59 - Step 5: Solve for x
x = 141,579,546,277,878.59/18,017,747.05 - Step 6: Final answer
x = 7,857,782.99
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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.