Finding the Fourth Proportional to 146,351,940, 201,965,965.90 and 80,272,976.12
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Solution
The fourth proportional to 146,351,940, 201,965,965.90 and 80,272,976.12 is: 110,776,865.40
Step by Step Solution
- Step 1: Write the proportion equation
146,351,940 : 201,965,965.90 = 80,272,976.12 : x - Step 2: Convert to fraction form
146,351,940/201,965,965.90 = 80,272,976.12/x - Step 3: Cross multiply
146,351,940x = 201,965,965.90 × 80,272,976.12 - Step 4: Simplify right side
146,351,940x = 16,212,409,157,743,436 - Step 5: Solve for x
x = 16,212,409,157,743,436/146,351,940 - Step 6: Final answer
x = 110,776,865.40
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1.5x scale
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.