Finding the Fourth Proportional to 111,906,949.20, 167,860,423.80 and 66,445,342.80
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Solution
The fourth proportional to 111,906,949.20, 167,860,423.80 and 66,445,342.80 is: 99,668,014.20
Step by Step Solution
- Step 1: Write the proportion equation
111,906,949.20 : 167,860,423.80 = 66,445,342.80 : x - Step 2: Convert to fraction form
111,906,949.20/167,860,423.80 = 66,445,342.80/x - Step 3: Cross multiply
111,906,949.20x = 167,860,423.80 × 66,445,342.80 - Step 4: Simplify right side
111,906,949.20x = 11,153,543,401,944,278 - Step 5: Solve for x
x = 11,153,543,401,944,278/111,906,949.20 - Step 6: Final answer
x = 99,668,014.20
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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.