Finding the Fourth Proportional to 80,641,112.80, 120,961,669.20 and 44,361,407.20
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Solution
The fourth proportional to 80,641,112.80, 120,961,669.20 and 44,361,407.20 is: 66,542,110.80
Step by Step Solution
- Step 1: Write the proportion equation
80,641,112.80 : 120,961,669.20 = 44,361,407.20 : x - Step 2: Convert to fraction form
80,641,112.80/120,961,669.20 = 44,361,407.20/x - Step 3: Cross multiply
80,641,112.80x = 120,961,669.20 × 44,361,407.20 - Step 4: Simplify right side
80,641,112.80x = 5,366,029,862,972,899 - Step 5: Solve for x
x = 5,366,029,862,972,899/80,641,112.80 - Step 6: Final answer
x = 66,542,110.80
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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.