Finding the Fourth Proportional to 221,479,967.20, 332,219,950.80 and 106,436,768.80
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Solution
The fourth proportional to 221,479,967.20, 332,219,950.80 and 106,436,768.80 is: 159,655,153.20
Step by Step Solution
- Step 1: Write the proportion equation
221,479,967.20 : 332,219,950.80 = 106,436,768.80 : x - Step 2: Convert to fraction form
221,479,967.20/332,219,950.80 = 106,436,768.80/x - Step 3: Cross multiply
221,479,967.20x = 332,219,950.80 × 106,436,768.80 - Step 4: Simplify right side
221,479,967.20x = 35,360,418,094,046,976 - Step 5: Solve for x
x = 35,360,418,094,046,976/221,479,967.20 - Step 6: Final answer
x = 159,655,153.20
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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.