Finding the Fourth Proportional to 218,271,442.20, 327,407,163.30 and 109,113,460.80
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Solution
The fourth proportional to 218,271,442.20, 327,407,163.30 and 109,113,460.80 is: 163,670,191.20
Step by Step Solution
- Step 1: Write the proportion equation
218,271,442.20 : 327,407,163.30 = 109,113,460.80 : x - Step 2: Convert to fraction form
218,271,442.20/327,407,163.30 = 109,113,460.80/x - Step 3: Cross multiply
218,271,442.20x = 327,407,163.30 × 109,113,460.80 - Step 4: Simplify right side
218,271,442.20x = 35,724,528,678,373,748 - Step 5: Solve for x
x = 35,724,528,678,373,748/218,271,442.20 - Step 6: Final answer
x = 163,670,191.20
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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.