Finding the Fourth Proportional to 72,568,531.20, 108,703,497.60 and 36,686,956.80
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Solution
The fourth proportional to 72,568,531.20, 108,703,497.60 and 36,686,956.80 is: 54,954,957.12
Step by Step Solution
- Step 1: Write the proportion equation
72,568,531.20 : 108,703,497.60 = 36,686,956.80 : x - Step 2: Convert to fraction form
72,568,531.20/108,703,497.60 = 36,686,956.80/x - Step 3: Cross multiply
72,568,531.20x = 108,703,497.60 × 36,686,956.80 - Step 4: Simplify right side
72,568,531.20x = 3,988,000,520,460,103 - Step 5: Solve for x
x = 3,988,000,520,460,103/72,568,531.20 - Step 6: Final answer
x = 54,954,957.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.