Finding the Fourth Proportional to 5,200,642.97, 7,177,098.81 and 2,877,497.70
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Solution
The fourth proportional to 5,200,642.97, 7,177,098.81 and 2,877,497.70 is: 3,971,063.85
Step by Step Solution
- Step 1: Write the proportion equation
5,200,642.97 : 7,177,098.81 = 2,877,497.70 : x - Step 2: Convert to fraction form
5,200,642.97/7,177,098.81 = 2,877,497.70/x - Step 3: Cross multiply
5,200,642.97x = 7,177,098.81 × 2,877,497.70 - Step 4: Simplify right side
5,200,642.97x = 20,652,085,302,324.23 - Step 5: Solve for x
x = 20,652,085,302,324.23/5,200,642.97 - Step 6: Final answer
x = 3,971,063.85
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1.5x scale
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.