Finding the Fourth Proportional to 76,909,450.08, 106,021,966.32 and 58,542,745.44
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Solution
The fourth proportional to 76,909,450.08, 106,021,966.32 and 58,542,745.44 is: 80,702,917.25
Step by Step Solution
- Step 1: Write the proportion equation
76,909,450.08 : 106,021,966.32 = 58,542,745.44 : x - Step 2: Convert to fraction form
76,909,450.08/106,021,966.32 = 58,542,745.44/x - Step 3: Cross multiply
76,909,450.08x = 106,021,966.32 × 58,542,745.44 - Step 4: Simplify right side
76,909,450.08x = 6,206,816,985,320,013 - Step 5: Solve for x
x = 6,206,816,985,320,013/76,909,450.08 - Step 6: Final answer
x = 80,702,917.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.