Finding the Fourth Proportional to 880,206,879.40, 1,320,310,319.10 and 788,373,874.60
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Solution
The fourth proportional to 880,206,879.40, 1,320,310,319.10 and 788,373,874.60 is: 1,182,560,811.90
Step by Step Solution
- Step 1: Write the proportion equation
880,206,879.40 : 1,320,310,319.10 = 788,373,874.60 : x - Step 2: Convert to fraction form
880,206,879.40/1,320,310,319.10 = 788,373,874.60/x - Step 3: Cross multiply
880,206,879.40x = 1,320,310,319.10 × 788,373,874.60 - Step 4: Simplify right side
880,206,879.40x = 1,040,898,161,943,229,312 - Step 5: Solve for x
x = 1,040,898,161,943,229,312/880,206,879.40 - Step 6: Final answer
x = 1,182,560,811.90
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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.