Finding the Fourth Proportional to 667,605,372.63, 921,350,567.70 and 370,343,455.62
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Solution
The fourth proportional to 667,605,372.63, 921,350,567.70 and 370,343,455.62 is: 511,104,564.27
Step by Step Solution
- Step 1: Write the proportion equation
667,605,372.63 : 921,350,567.70 = 370,343,455.62 : x - Step 2: Convert to fraction form
667,605,372.63/921,350,567.70 = 370,343,455.62/x - Step 3: Cross multiply
667,605,372.63x = 921,350,567.70 × 370,343,455.62 - Step 4: Simplify right side
667,605,372.63x = 341,216,153,079,466,752 - Step 5: Solve for x
x = 341,216,153,079,466,752/667,605,372.63 - Step 6: Final answer
x = 511,104,564.27
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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.