Finding the Fourth Proportional to 221,653,251.20, 332,511,369.60 and 68,283,315.20
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Solution
The fourth proportional to 221,653,251.20, 332,511,369.60 and 68,283,315.20 is: 102,434,674.59
Step by Step Solution
- Step 1: Write the proportion equation
221,653,251.20 : 332,511,369.60 = 68,283,315.20 : x - Step 2: Convert to fraction form
221,653,251.20/332,511,369.60 = 68,283,315.20/x - Step 3: Cross multiply
221,653,251.20x = 332,511,369.60 × 68,283,315.20 - Step 4: Simplify right side
221,653,251.20x = 22,704,978,657,980,500 - Step 5: Solve for x
x = 22,704,978,657,980,500/221,653,251.20 - Step 6: Final answer
x = 102,434,674.59
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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.