Finding the Fourth Proportional to 647,694,830.40, 971,542,245.60 and 531,468,683.70
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Solution
The fourth proportional to 647,694,830.40, 971,542,245.60 and 531,468,683.70 is: 797,203,025.55
Step by Step Solution
- Step 1: Write the proportion equation
647,694,830.40 : 971,542,245.60 = 531,468,683.70 : x - Step 2: Convert to fraction form
647,694,830.40/971,542,245.60 = 531,468,683.70/x - Step 3: Cross multiply
647,694,830.40x = 971,542,245.60 × 531,468,683.70 - Step 4: Simplify right side
647,694,830.40x = 516,344,278,427,974,144 - Step 5: Solve for x
x = 516,344,278,427,974,144/647,694,830.40 - Step 6: Final answer
x = 797,203,025.55
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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.