Finding the Fourth Proportional to 221,479,969.70, 332,219,954.55 and 106,436,771.30
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Solution
The fourth proportional to 221,479,969.70, 332,219,954.55 and 106,436,771.30 is: 159,655,156.95
Step by Step Solution
- Step 1: Write the proportion equation
221,479,969.70 : 332,219,954.55 = 106,436,771.30 : x - Step 2: Convert to fraction form
221,479,969.70/332,219,954.55 = 106,436,771.30/x - Step 3: Cross multiply
221,479,969.70x = 332,219,954.55 × 106,436,771.30 - Step 4: Simplify right side
221,479,969.70x = 35,360,419,323,734,744 - Step 5: Solve for x
x = 35,360,419,323,734,744/221,479,969.70 - Step 6: Final answer
x = 159,655,156.95
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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.