Finding the Fourth Proportional to 489,324,963.80, 733,987,445.70 and 166,208,835.80
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Solution
The fourth proportional to 489,324,963.80, 733,987,445.70 and 166,208,835.80 is: 249,313,253.70
Step by Step Solution
- Step 1: Write the proportion equation
489,324,963.80 : 733,987,445.70 = 166,208,835.80 : x - Step 2: Convert to fraction form
489,324,963.80/733,987,445.70 = 166,208,835.80/x - Step 3: Cross multiply
489,324,963.80x = 733,987,445.70 × 166,208,835.80 - Step 4: Simplify right side
489,324,963.80x = 121,995,198,841,612,736 - Step 5: Solve for x
x = 121,995,198,841,612,736/489,324,963.80 - Step 6: Final answer
x = 249,313,253.70
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1.5x scale
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.