Finding the Fourth Proportional to 36,902,640.18, 50,921,275.41 and 20,381,782.98
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Solution
The fourth proportional to 36,902,640.18, 50,921,275.41 and 20,381,782.98 is: 28,124,447.99
Step by Step Solution
- Step 1: Write the proportion equation
36,902,640.18 : 50,921,275.41 = 20,381,782.98 : x - Step 2: Convert to fraction form
36,902,640.18/50,921,275.41 = 20,381,782.98/x - Step 3: Cross multiply
36,902,640.18x = 50,921,275.41 × 20,381,782.98 - Step 4: Simplify right side
36,902,640.18x = 1,037,866,384,471,430.50 - Step 5: Solve for x
x = 1,037,866,384,471,430.50/36,902,640.18 - Step 6: Final answer
x = 28,124,447.99
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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.