Finding the Fourth Proportional to 647,694,321.90, 971,541,482.85 and 531,468,175.20
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Solution
The fourth proportional to 647,694,321.90, 971,541,482.85 and 531,468,175.20 is: 797,202,262.80
Step by Step Solution
- Step 1: Write the proportion equation
647,694,321.90 : 971,541,482.85 = 531,468,175.20 : x - Step 2: Convert to fraction form
647,694,321.90/971,541,482.85 = 531,468,175.20/x - Step 3: Cross multiply
647,694,321.90x = 971,541,482.85 × 531,468,175.20 - Step 4: Simplify right side
647,694,321.90x = 516,343,379,021,391,616 - Step 5: Solve for x
x = 516,343,379,021,391,616/647,694,321.90 - Step 6: Final answer
x = 797,202,262.80
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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.