Finding the Fourth Proportional to 882,136,142.80, 1,323,204,214.20 and 868,531,253.20
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Solution
The fourth proportional to 882,136,142.80, 1,323,204,214.20 and 868,531,253.20 is: 1,302,796,879.80
Step by Step Solution
- Step 1: Write the proportion equation
882,136,142.80 : 1,323,204,214.20 = 868,531,253.20 : x - Step 2: Convert to fraction form
882,136,142.80/1,323,204,214.20 = 868,531,253.20/x - Step 3: Cross multiply
882,136,142.80x = 1,323,204,214.20 × 868,531,253.20 - Step 4: Simplify right side
882,136,142.80x = 1,149,244,214,398,647,296 - Step 5: Solve for x
x = 1,149,244,214,398,647,296/882,136,142.80 - Step 6: Final answer
x = 1,302,796,879.80
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1.5x scale
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.