Finding the Fourth Proportional to 8,219,217.99, 12,328,911.73 and 3,670,498.56
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Solution
The fourth proportional to 8,219,217.99, 12,328,911.73 and 3,670,498.56 is: 5,505,785.69
Step by Step Solution
- Step 1: Write the proportion equation
8,219,217.99 : 12,328,911.73 = 3,670,498.56 : x - Step 2: Convert to fraction form
8,219,217.99/12,328,911.73 = 3,670,498.56/x - Step 3: Cross multiply
8,219,217.99x = 12,328,911.73 × 3,670,498.56 - Step 4: Simplify right side
8,219,217.99x = 45,253,252,751,332.11 - Step 5: Solve for x
x = 45,253,252,751,332.11/8,219,217.99 - Step 6: Final answer
x = 5,505,785.69
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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.