Finding the Fourth Proportional to 85,263,306.88, 117,660,451.84 and 48,605,687.68
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Solution
The fourth proportional to 85,263,306.88, 117,660,451.84 and 48,605,687.68 is: 67,074,189.16
Step by Step Solution
- Step 1: Write the proportion equation
85,263,306.88 : 117,660,451.84 = 48,605,687.68 : x - Step 2: Convert to fraction form
85,263,306.88/117,660,451.84 = 48,605,687.68/x - Step 3: Cross multiply
85,263,306.88x = 117,660,451.84 × 48,605,687.68 - Step 4: Simplify right side
85,263,306.88x = 5,718,967,174,422,721 - Step 5: Solve for x
x = 5,718,967,174,422,721/85,263,306.88 - Step 6: Final answer
x = 67,074,189.16
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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.