Finding the Fourth Proportional to 5,171,389.40, 7,136,450.37 and 2,848,237.71
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Solution
The fourth proportional to 5,171,389.40, 7,136,450.37 and 2,848,237.71 is: 3,930,531.14
Step by Step Solution
- Step 1: Write the proportion equation
5,171,389.40 : 7,136,450.37 = 2,848,237.71 : x - Step 2: Convert to fraction form
5,171,389.40/7,136,450.37 = 2,848,237.71/x - Step 3: Cross multiply
5,171,389.40x = 7,136,450.37 × 2,848,237.71 - Step 4: Simplify right side
5,171,389.40x = 20,326,307,059,377.45 - Step 5: Solve for x
x = 20,326,307,059,377.45/5,171,389.40 - Step 6: Final answer
x = 3,930,531.14
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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.