Finding the Fourth Proportional to 347,760,107.70, 521,640,161.55 and 245,723,435.70
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Solution
The fourth proportional to 347,760,107.70, 521,640,161.55 and 245,723,435.70 is: 368,585,153.55
Step by Step Solution
- Step 1: Write the proportion equation
347,760,107.70 : 521,640,161.55 = 245,723,435.70 : x - Step 2: Convert to fraction form
347,760,107.70/521,640,161.55 = 245,723,435.70/x - Step 3: Cross multiply
347,760,107.70x = 521,640,161.55 × 245,723,435.70 - Step 4: Simplify right side
347,760,107.70x = 128,179,212,695,169,040 - Step 5: Solve for x
x = 128,179,212,695,169,040/347,760,107.70 - Step 6: Final answer
x = 368,585,153.55
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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.