Finding the Fourth Proportional to 7,217,531.18, 9,960,192.74 and 3,954,469.67
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Solution
The fourth proportional to 7,217,531.18, 9,960,192.74 and 3,954,469.67 is: 5,457,167.99
Step by Step Solution
- Step 1: Write the proportion equation
7,217,531.18 : 9,960,192.74 = 3,954,469.67 : x - Step 2: Convert to fraction form
7,217,531.18/9,960,192.74 = 3,954,469.67/x - Step 3: Cross multiply
7,217,531.18x = 9,960,192.74 × 3,954,469.67 - Step 4: Simplify right side
7,217,531.18x = 39,387,280,097,684.20 - Step 5: Solve for x
x = 39,387,280,097,684.20/7,217,531.18 - Step 6: Final answer
x = 5,457,167.99
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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.