Finding the Fourth Proportional to 128,508,130.26, 192,758,516.65 and 36,391,650.47
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Solution
The fourth proportional to 128,508,130.26, 192,758,516.65 and 36,391,650.47 is: 54,586,433.94
Step by Step Solution
- Step 1: Write the proportion equation
128,508,130.26 : 192,758,516.65 = 36,391,650.47 : x - Step 2: Convert to fraction form
128,508,130.26/192,758,516.65 = 36,391,650.47/x - Step 3: Cross multiply
128,508,130.26x = 192,758,516.65 × 36,391,650.47 - Step 4: Simplify right side
128,508,130.26x = 7,014,800,563,042,475 - Step 5: Solve for x
x = 7,014,800,563,042,475/128,508,130.26 - Step 6: Final answer
x = 54,586,433.94
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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.