Finding the Fourth Proportional to 3,166,399.42, 4,714,366.53 and 3,121,677.70
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Solution
The fourth proportional to 3,166,399.42, 4,714,366.53 and 3,121,677.70 is: 4,647,781.57
Step by Step Solution
- Step 1: Write the proportion equation
3,166,399.42 : 4,714,366.53 = 3,121,677.70 : x - Step 2: Convert to fraction form
3,166,399.42/4,714,366.53 = 3,121,677.70/x - Step 3: Cross multiply
3,166,399.42x = 4,714,366.53 × 3,121,677.70 - Step 4: Simplify right side
3,166,399.42x = 14,716,732,866,327.38 - Step 5: Solve for x
x = 14,716,732,866,327.38/3,166,399.42 - Step 6: Final answer
x = 4,647,781.57
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.