Finding the Fourth Proportional to 139,968,107.70, 209,952,161.69 and 139,968,107.70
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Solution
The fourth proportional to 139,968,107.70, 209,952,161.69 and 139,968,107.70 is: 209,952,161.69
Step by Step Solution
- Step 1: Write the proportion equation
139,968,107.70 : 209,952,161.69 = 139,968,107.70 : x - Step 2: Convert to fraction form
139,968,107.70/209,952,161.69 = 139,968,107.70/x - Step 3: Cross multiply
139,968,107.70x = 209,952,161.69 × 139,968,107.70 - Step 4: Simplify right side
139,968,107.70x = 29,386,606,778,573,892 - Step 5: Solve for x
x = 29,386,606,778,573,892/139,968,107.70 - Step 6: Final answer
x = 209,952,161.69
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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.