Finding the Fourth Proportional to 8,363,180.81, 12,543,274.74 and 5,321,511.47
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Solution
The fourth proportional to 8,363,180.81, 12,543,274.74 and 5,321,511.47 is: 7,981,314.99
Step by Step Solution
- Step 1: Write the proportion equation
8,363,180.81 : 12,543,274.74 = 5,321,511.47 : x - Step 2: Convert to fraction form
8,363,180.81/12,543,274.74 = 5,321,511.47/x - Step 3: Cross multiply
8,363,180.81x = 12,543,274.74 × 5,321,511.47 - Step 4: Simplify right side
8,363,180.81x = 66,749,180,400,271.27 - Step 5: Solve for x
x = 66,749,180,400,271.27/8,363,180.81 - Step 6: Final answer
x = 7,981,314.99
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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.