Finding the Fourth Proportional to 8,313,578.18, 11,478,136.25 and 7,440,901.61
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Solution
The fourth proportional to 8,313,578.18, 11,478,136.25 and 7,440,901.61 is: 10,273,275.93
Step by Step Solution
- Step 1: Write the proportion equation
8,313,578.18 : 11,478,136.25 = 7,440,901.61 : x - Step 2: Convert to fraction form
8,313,578.18/11,478,136.25 = 7,440,901.61/x - Step 3: Cross multiply
8,313,578.18x = 11,478,136.25 × 7,440,901.61 - Step 4: Simplify right side
8,313,578.18x = 85,407,682,549,721.95 - Step 5: Solve for x
x = 85,407,682,549,721.95/8,313,578.18 - Step 6: Final answer
x = 10,273,275.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.