Finding the Fourth Proportional to 263,239,621.80, 394,859,432.70 and 186,712,117.80
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Solution
The fourth proportional to 263,239,621.80, 394,859,432.70 and 186,712,117.80 is: 280,068,176.70
Step by Step Solution
- Step 1: Write the proportion equation
263,239,621.80 : 394,859,432.70 = 186,712,117.80 : x - Step 2: Convert to fraction form
263,239,621.80/394,859,432.70 = 186,712,117.80/x - Step 3: Cross multiply
263,239,621.80x = 394,859,432.70 × 186,712,117.80 - Step 4: Simplify right side
263,239,621.80x = 73,725,040,912,723,568 - Step 5: Solve for x
x = 73,725,040,912,723,568/263,239,621.80 - Step 6: Final answer
x = 280,068,176.70
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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.