Finding the Fourth Proportional to 472,394,930.40, 708,592,395.60 and 437,957,553.60
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Solution
The fourth proportional to 472,394,930.40, 708,592,395.60 and 437,957,553.60 is: 656,936,330.40
Step by Step Solution
- Step 1: Write the proportion equation
472,394,930.40 : 708,592,395.60 = 437,957,553.60 : x - Step 2: Convert to fraction form
472,394,930.40/708,592,395.60 = 437,957,553.60/x - Step 3: Cross multiply
472,394,930.40x = 708,592,395.60 × 437,957,553.60 - Step 4: Simplify right side
472,394,930.40x = 310,333,392,076,539,456 - Step 5: Solve for x
x = 310,333,392,076,539,456/472,394,930.40 - Step 6: Final answer
x = 656,936,330.40
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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.