Finding the Fourth Proportional to 667,605,378.64, 921,350,576 and 370,343,461.60
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Solution
The fourth proportional to 667,605,378.64, 921,350,576 and 370,343,461.60 is: 511,104,572.52
Step by Step Solution
- Step 1: Write the proportion equation
667,605,378.64 : 921,350,576 = 370,343,461.60 : x - Step 2: Convert to fraction form
667,605,378.64/921,350,576 = 370,343,461.60/x - Step 3: Cross multiply
667,605,378.64x = 921,350,576 × 370,343,461.60 - Step 4: Simplify right side
667,605,378.64x = 341,216,161,662,993,920 - Step 5: Solve for x
x = 341,216,161,662,993,920/667,605,378.64 - Step 6: Final answer
x = 511,104,572.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.