Finding the Fourth Proportional to 163,819,862.40, 245,729,793.60 and 147,380,620.80
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Solution
The fourth proportional to 163,819,862.40, 245,729,793.60 and 147,380,620.80 is: 221,070,931.20
Step by Step Solution
- Step 1: Write the proportion equation
163,819,862.40 : 245,729,793.60 = 147,380,620.80 : x - Step 2: Convert to fraction form
163,819,862.40/245,729,793.60 = 147,380,620.80/x - Step 3: Cross multiply
163,819,862.40x = 245,729,793.60 × 147,380,620.80 - Step 4: Simplify right side
163,819,862.40x = 36,215,809,529,823,872 - Step 5: Solve for x
x = 36,215,809,529,823,872/163,819,862.40 - Step 6: Final answer
x = 221,070,931.20
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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.