Finding the Fourth Proportional to 841,324,523.63, 1,261,985,093.21 and 790,127,278.27
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Solution
The fourth proportional to 841,324,523.63, 1,261,985,093.21 and 790,127,278.27 is: 1,185,189,328.15
Step by Step Solution
- Step 1: Write the proportion equation
841,324,523.63 : 1,261,985,093.21 = 790,127,278.27 : x - Step 2: Convert to fraction form
841,324,523.63/1,261,985,093.21 = 790,127,278.27/x - Step 3: Cross multiply
841,324,523.63x = 1,261,985,093.21 × 790,127,278.27 - Step 4: Simplify right side
841,324,523.63x = 997,128,846,914,150,016 - Step 5: Solve for x
x = 997,128,846,914,150,016/841,324,523.63 - Step 6: Final answer
x = 1,185,189,328.15
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1.5x scale
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.