Finding the Fourth Proportional to 5,159,930.48, 7,120,708.62 and 2,836,862.52
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Solution
The fourth proportional to 5,159,930.48, 7,120,708.62 and 2,836,862.52 is: 3,914,872.79
Step by Step Solution
- Step 1: Write the proportion equation
5,159,930.48 : 7,120,708.62 = 2,836,862.52 : x - Step 2: Convert to fraction form
5,159,930.48/7,120,708.62 = 2,836,862.52/x - Step 3: Cross multiply
5,159,930.48x = 7,120,708.62 × 2,836,862.52 - Step 4: Simplify right side
5,159,930.48x = 20,200,471,399,918.92 - Step 5: Solve for x
x = 20,200,471,399,918.92/5,159,930.48 - Step 6: Final answer
x = 3,914,872.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.