Finding the Fourth Proportional to 7,972,278,563.60, 11,958,354,859.80 and 2,076,826,403.60
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Solution
The fourth proportional to 7,972,278,563.60, 11,958,354,859.80 and 2,076,826,403.60 is: 3,115,223,197.27
Step by Step Solution
- Step 1: Write the proportion equation
7,972,278,563.60 : 11,958,354,859.80 = 2,076,826,403.60 : x - Step 2: Convert to fraction form
7,972,278,563.60/11,958,354,859.80 = 2,076,826,403.60/x - Step 3: Cross multiply
7,972,278,563.60x = 11,958,354,859.80 × 2,076,826,403.60 - Step 4: Simplify right side
7,972,278,563.60x = 24,835,427,116,451,012,608 - Step 5: Solve for x
x = 24,835,427,116,451,012,608/7,972,278,563.60 - Step 6: Final answer
x = 3,115,223,197.27
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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.