Finding the Fourth Proportional to 784,365,201.71, 1,082,389,062.68 and 449,597,728.69
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Solution
The fourth proportional to 784,365,201.71, 1,082,389,062.68 and 449,597,728.69 is: 620,424,851.95
Step by Step Solution
- Step 1: Write the proportion equation
784,365,201.71 : 1,082,389,062.68 = 449,597,728.69 : x - Step 2: Convert to fraction form
784,365,201.71/1,082,389,062.68 = 449,597,728.69/x - Step 3: Cross multiply
784,365,201.71x = 1,082,389,062.68 × 449,597,728.69 - Step 4: Simplify right side
784,365,201.71x = 486,639,664,145,170,560 - Step 5: Solve for x
x = 486,639,664,145,170,560/784,365,201.71 - Step 6: Final answer
x = 620,424,851.95
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1.5x scale
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.