Finding the Fourth Proportional to 629,858,743.20, 944,788,114.80 and 616,421,815.20
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Solution
The fourth proportional to 629,858,743.20, 944,788,114.80 and 616,421,815.20 is: 924,632,722.80
Step by Step Solution
- Step 1: Write the proportion equation
629,858,743.20 : 944,788,114.80 = 616,421,815.20 : x - Step 2: Convert to fraction form
629,858,743.20/944,788,114.80 = 616,421,815.20/x - Step 3: Cross multiply
629,858,743.20x = 944,788,114.80 × 616,421,815.20 - Step 4: Simplify right side
629,858,743.20x = 582,388,004,704,402,048 - Step 5: Solve for x
x = 582,388,004,704,402,048/629,858,743.20 - Step 6: Final answer
x = 924,632,722.80
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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.