Finding the Fourth Proportional to 378,432,195.20, 567,648,292.80 and 378,432,195.20
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Solution
The fourth proportional to 378,432,195.20, 567,648,292.80 and 378,432,195.20 is: 567,648,292.80
Step by Step Solution
- Step 1: Write the proportion equation
378,432,195.20 : 567,648,292.80 = 378,432,195.20 : x - Step 2: Convert to fraction form
378,432,195.20/567,648,292.80 = 378,432,195.20/x - Step 3: Cross multiply
378,432,195.20x = 567,648,292.80 × 378,432,195.20 - Step 4: Simplify right side
378,432,195.20x = 214,816,389,545,836,320 - Step 5: Solve for x
x = 214,816,389,545,836,320/378,432,195.20 - Step 6: Final answer
x = 567,648,292.80
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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.