Finding the Fourth Proportional to 86,940,121.80, 130,410,182.70 and 46,629,337.80
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Solution
The fourth proportional to 86,940,121.80, 130,410,182.70 and 46,629,337.80 is: 69,944,006.70
Step by Step Solution
- Step 1: Write the proportion equation
86,940,121.80 : 130,410,182.70 = 46,629,337.80 : x - Step 2: Convert to fraction form
86,940,121.80/130,410,182.70 = 46,629,337.80/x - Step 3: Cross multiply
86,940,121.80x = 130,410,182.70 × 46,629,337.80 - Step 4: Simplify right side
86,940,121.80x = 6,080,940,461,678,016 - Step 5: Solve for x
x = 6,080,940,461,678,016/86,940,121.80 - Step 6: Final answer
x = 69,944,006.70
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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.