Finding the Fourth Proportional to 436,660,584.40, 653,199,286.20 and 393,662,414.80
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Solution
The fourth proportional to 436,660,584.40, 653,199,286.20 and 393,662,414.80 is: 588,878,450.53
Step by Step Solution
- Step 1: Write the proportion equation
436,660,584.40 : 653,199,286.20 = 393,662,414.80 : x - Step 2: Convert to fraction form
436,660,584.40/653,199,286.20 = 393,662,414.80/x - Step 3: Cross multiply
436,660,584.40x = 653,199,286.20 × 393,662,414.80 - Step 4: Simplify right side
436,660,584.40x = 257,140,008,351,128,352 - Step 5: Solve for x
x = 257,140,008,351,128,352/436,660,584.40 - Step 6: Final answer
x = 588,878,450.53
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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.