Finding the Fourth Proportional to 75,660,549.75, 113,490,934.02 and 21,073,292.19
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Solution
The fourth proportional to 75,660,549.75, 113,490,934.02 and 21,073,292.19 is: 31,609,968.75
Step by Step Solution
- Step 1: Write the proportion equation
75,660,549.75 : 113,490,934.02 = 21,073,292.19 : x - Step 2: Convert to fraction form
75,660,549.75/113,490,934.02 = 21,073,292.19/x - Step 3: Cross multiply
75,660,549.75x = 113,490,934.02 × 21,073,292.19 - Step 4: Simplify right side
75,660,549.75x = 2,391,627,613,519,471.50 - Step 5: Solve for x
x = 2,391,627,613,519,471.50/75,660,549.75 - Step 6: Final answer
x = 31,609,968.75
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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.