Finding the Fourth Proportional to 129,025,274.80, 193,537,912.20 and 57,361,658.80
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Solution
The fourth proportional to 129,025,274.80, 193,537,912.20 and 57,361,658.80 is: 86,042,488.20
Step by Step Solution
- Step 1: Write the proportion equation
129,025,274.80 : 193,537,912.20 = 57,361,658.80 : x - Step 2: Convert to fraction form
129,025,274.80/193,537,912.20 = 57,361,658.80/x - Step 3: Cross multiply
129,025,274.80x = 193,537,912.20 × 57,361,658.80 - Step 4: Simplify right side
129,025,274.80x = 11,101,655,684,480,756 - Step 5: Solve for x
x = 11,101,655,684,480,756/129,025,274.80 - Step 6: Final answer
x = 86,042,488.20
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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.