Finding the Fourth Proportional to 76,957,029.28, 106,202,418.69 and 43,916,620.60
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Solution
The fourth proportional to 76,957,029.28, 106,202,418.69 and 43,916,620.60 is: 60,605,916.99
Step by Step Solution
- Step 1: Write the proportion equation
76,957,029.28 : 106,202,418.69 = 43,916,620.60 : x - Step 2: Convert to fraction form
76,957,029.28/106,202,418.69 = 43,916,620.60/x - Step 3: Cross multiply
76,957,029.28x = 106,202,418.69 × 43,916,620.60 - Step 4: Simplify right side
76,957,029.28x = 4,664,051,328,411,079 - Step 5: Solve for x
x = 4,664,051,328,411,079/76,957,029.28 - Step 6: Final answer
x = 60,605,916.99
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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.