Finding the Fourth Proportional to 18,523,917.77, 27,783,354.30 and 4,875,921.18
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Solution
The fourth proportional to 18,523,917.77, 27,783,354.30 and 4,875,921.18 is: 7,313,217.83
Step by Step Solution
- Step 1: Write the proportion equation
18,523,917.77 : 27,783,354.30 = 4,875,921.18 : x - Step 2: Convert to fraction form
18,523,917.77/27,783,354.30 = 4,875,921.18/x - Step 3: Cross multiply
18,523,917.77x = 27,783,354.30 × 4,875,921.18 - Step 4: Simplify right side
18,523,917.77x = 135,469,445,682,814.06 - Step 5: Solve for x
x = 135,469,445,682,814.06/18,523,917.77 - Step 6: Final answer
x = 7,313,217.83
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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.