Finding the Fourth Proportional to 7,887,745.80, 11,831,618.70 and 3,636,217.80
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Solution
The fourth proportional to 7,887,745.80, 11,831,618.70 and 3,636,217.80 is: 5,454,326.70
Step by Step Solution
- Step 1: Write the proportion equation
7,887,745.80 : 11,831,618.70 = 3,636,217.80 : x - Step 2: Convert to fraction form
7,887,745.80/11,831,618.70 = 3,636,217.80/x - Step 3: Cross multiply
7,887,745.80x = 11,831,618.70 × 3,636,217.80 - Step 4: Simplify right side
7,887,745.80x = 43,022,342,519,752.85 - Step 5: Solve for x
x = 43,022,342,519,752.85/7,887,745.80 - Step 6: Final answer
x = 5,454,326.70
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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.