Finding the Fourth Proportional to 45,597,252.58, 68,385,621.46 and 20,981,562.93
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Solution
The fourth proportional to 45,597,252.58, 68,385,621.46 and 20,981,562.93 is: 31,467,624.45
Step by Step Solution
- Step 1: Write the proportion equation
45,597,252.58 : 68,385,621.46 = 20,981,562.93 : x - Step 2: Convert to fraction form
45,597,252.58/68,385,621.46 = 20,981,562.93/x - Step 3: Cross multiply
45,597,252.58x = 68,385,621.46 × 20,981,562.93 - Step 4: Simplify right side
45,597,252.58x = 1,434,837,220,170,148.25 - Step 5: Solve for x
x = 1,434,837,220,170,148.25/45,597,252.58 - Step 6: Final answer
x = 31,467,624.45
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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.