Finding the Fourth Proportional to 5,128,578.20, 7,683,536.10 and 4,176,795.80
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Solution
The fourth proportional to 5,128,578.20, 7,683,536.10 and 4,176,795.80 is: 6,257,594.22
Step by Step Solution
- Step 1: Write the proportion equation
5,128,578.20 : 7,683,536.10 = 4,176,795.80 : x - Step 2: Convert to fraction form
5,128,578.20/7,683,536.10 = 4,176,795.80/x - Step 3: Cross multiply
5,128,578.20x = 7,683,536.10 × 4,176,795.80 - Step 4: Simplify right side
5,128,578.20x = 32,092,561,311,628.38 - Step 5: Solve for x
x = 32,092,561,311,628.38/5,128,578.20 - Step 6: Final answer
x = 6,257,594.22
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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.