Finding the Fourth Proportional to 1,278,179,697.20, 1,917,269,545.80 and 733,984,113.20
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Solution
The fourth proportional to 1,278,179,697.20, 1,917,269,545.80 and 733,984,113.20 is: 1,100,976,169.80
Step by Step Solution
- Step 1: Write the proportion equation
1,278,179,697.20 : 1,917,269,545.80 = 733,984,113.20 : x - Step 2: Convert to fraction form
1,278,179,697.20/1,917,269,545.80 = 733,984,113.20/x - Step 3: Cross multiply
1,278,179,697.20x = 1,917,269,545.80 × 733,984,113.20 - Step 4: Simplify right side
1,278,179,697.20x = 1,407,245,387,339,379,968 - Step 5: Solve for x
x = 1,407,245,387,339,379,968/1,278,179,697.20 - Step 6: Final answer
x = 1,100,976,169.80
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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.