Finding the Fourth Proportional to 994,512,274.11, 1,372,428,299.34 and 542,391,334.49
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Solution
The fourth proportional to 994,512,274.11, 1,372,428,299.34 and 542,391,334.49 is: 748,500,783.90
Step by Step Solution
- Step 1: Write the proportion equation
994,512,274.11 : 1,372,428,299.34 = 542,391,334.49 : x - Step 2: Convert to fraction form
994,512,274.11/1,372,428,299.34 = 542,391,334.49/x - Step 3: Cross multiply
994,512,274.11x = 1,372,428,299.34 × 542,391,334.49 - Step 4: Simplify right side
994,512,274.11x = 744,393,216,774,294,784 - Step 5: Solve for x
x = 744,393,216,774,294,784/994,512,274.11 - Step 6: Final answer
x = 748,500,783.90
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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.