Finding the Fourth Proportional to 129,929,584.43, 194,918,956.91 and 52,212,538.37
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Solution
The fourth proportional to 129,929,584.43, 194,918,956.91 and 52,212,538.37 is: 78,328,685.20
Step by Step Solution
- Step 1: Write the proportion equation
129,929,584.43 : 194,918,956.91 = 52,212,538.37 : x - Step 2: Convert to fraction form
129,929,584.43/194,918,956.91 = 52,212,538.37/x - Step 3: Cross multiply
129,929,584.43x = 194,918,956.91 × 52,212,538.37 - Step 4: Simplify right side
129,929,584.43x = 10,177,213,516,703,750 - Step 5: Solve for x
x = 10,177,213,516,703,750/129,929,584.43 - Step 6: Final answer
x = 78,328,685.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.