Finding the Fourth Proportional to 612,998,232.40, 919,497,348.60 and 609,171,857.20
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Solution
The fourth proportional to 612,998,232.40, 919,497,348.60 and 609,171,857.20 is: 913,757,785.80
Step by Step Solution
- Step 1: Write the proportion equation
612,998,232.40 : 919,497,348.60 = 609,171,857.20 : x - Step 2: Convert to fraction form
612,998,232.40/919,497,348.60 = 609,171,857.20/x - Step 3: Cross multiply
612,998,232.40x = 919,497,348.60 × 609,171,857.20 - Step 4: Simplify right side
612,998,232.40x = 560,131,907,537,137,856 - Step 5: Solve for x
x = 560,131,907,537,137,856/612,998,232.40 - Step 6: Final answer
x = 913,757,785.80
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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.