Finding the Fourth Proportional to 434,497,791.80, 651,746,687.70 and 378,377,622.20
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Solution
The fourth proportional to 434,497,791.80, 651,746,687.70 and 378,377,622.20 is: 567,566,433.30
Step by Step Solution
- Step 1: Write the proportion equation
434,497,791.80 : 651,746,687.70 = 378,377,622.20 : x - Step 2: Convert to fraction form
434,497,791.80/651,746,687.70 = 378,377,622.20/x - Step 3: Cross multiply
434,497,791.80x = 651,746,687.70 × 378,377,622.20 - Step 4: Simplify right side
434,497,791.80x = 246,606,361,968,652,000 - Step 5: Solve for x
x = 246,606,361,968,652,000/434,497,791.80 - Step 6: Final answer
x = 567,566,433.30
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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.