Finding the Fourth Proportional to 363,739,659.60, 545,609,489.40 and 218,620,837.20
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Solution
The fourth proportional to 363,739,659.60, 545,609,489.40 and 218,620,837.20 is: 327,931,255.80
Step by Step Solution
- Step 1: Write the proportion equation
363,739,659.60 : 545,609,489.40 = 218,620,837.20 : x - Step 2: Convert to fraction form
363,739,659.60/545,609,489.40 = 218,620,837.20/x - Step 3: Cross multiply
363,739,659.60x = 545,609,489.40 × 218,620,837.20 - Step 4: Simplify right side
363,739,659.60x = 119,281,603,356,892,512 - Step 5: Solve for x
x = 119,281,603,356,892,512/363,739,659.60 - Step 6: Final answer
x = 327,931,255.80
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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.