Finding the Fourth Proportional to 263,686,472.49, 395,491,206.35 and 76,890,219.29
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Solution
The fourth proportional to 263,686,472.49, 395,491,206.35 and 76,890,219.29 is: 115,324,101.74
Step by Step Solution
- Step 1: Write the proportion equation
263,686,472.49 : 395,491,206.35 = 76,890,219.29 : x - Step 2: Convert to fraction form
263,686,472.49/395,491,206.35 = 76,890,219.29/x - Step 3: Cross multiply
263,686,472.49x = 395,491,206.35 × 76,890,219.29 - Step 4: Simplify right side
263,686,472.49x = 30,409,405,581,156,236 - Step 5: Solve for x
x = 30,409,405,581,156,236/263,686,472.49 - Step 6: Final answer
x = 115,324,101.74
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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.