Finding the Fourth Proportional to 221,415,446.46, 332,154,866.25 and 68,074,378.14
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Solution
The fourth proportional to 221,415,446.46, 332,154,866.25 and 68,074,378.14 is: 102,121,312.35
Step by Step Solution
- Step 1: Write the proportion equation
221,415,446.46 : 332,154,866.25 = 68,074,378.14 : x - Step 2: Convert to fraction form
221,415,446.46/332,154,866.25 = 68,074,378.14/x - Step 3: Cross multiply
221,415,446.46x = 332,154,866.25 × 68,074,378.14 - Step 4: Simplify right side
221,415,446.46x = 22,611,235,966,143,624 - Step 5: Solve for x
x = 22,611,235,966,143,624/221,415,446.46 - Step 6: Final answer
x = 102,121,312.35
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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.