Finding the Fourth Proportional to 271,022,611.19, 406,542,688.14 and 129,021,354.59
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Solution
The fourth proportional to 271,022,611.19, 406,542,688.14 and 129,021,354.59 is: 193,536,207.52
Step by Step Solution
- Step 1: Write the proportion equation
271,022,611.19 : 406,542,688.14 = 129,021,354.59 : x - Step 2: Convert to fraction form
271,022,611.19/406,542,688.14 = 129,021,354.59/x - Step 3: Cross multiply
271,022,611.19x = 406,542,688.14 × 129,021,354.59 - Step 4: Simplify right side
271,022,611.19x = 52,452,688,322,482,728 - Step 5: Solve for x
x = 52,452,688,322,482,728/271,022,611.19 - Step 6: Final answer
x = 193,536,207.52
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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.