Finding the Fourth Proportional to 674,605,640.48, 930,958,283.75 and 392,415,791.18
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Solution
The fourth proportional to 674,605,640.48, 930,958,283.75 and 392,415,791.18 is: 541,535,246.00
Step by Step Solution
- Step 1: Write the proportion equation
674,605,640.48 : 930,958,283.75 = 392,415,791.18 : x - Step 2: Convert to fraction form
674,605,640.48/930,958,283.75 = 392,415,791.18/x - Step 3: Cross multiply
674,605,640.48x = 930,958,283.75 × 392,415,791.18 - Step 4: Simplify right side
674,605,640.48x = 365,322,731,466,714,304 - Step 5: Solve for x
x = 365,322,731,466,714,304/674,605,640.48 - Step 6: Final answer
x = 541,535,246.00
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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.