Finding the Fourth Proportional to 39,335,719.05, 54,283,965.35 and 21,696,647.13
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Solution
The fourth proportional to 39,335,719.05, 54,283,965.35 and 21,696,647.13 is: 29,941,744.28
Step by Step Solution
- Step 1: Write the proportion equation
39,335,719.05 : 54,283,965.35 = 21,696,647.13 : x - Step 2: Convert to fraction form
39,335,719.05/54,283,965.35 = 21,696,647.13/x - Step 3: Cross multiply
39,335,719.05x = 54,283,965.35 × 21,696,647.13 - Step 4: Simplify right side
39,335,719.05x = 1,177,780,040,907,613.75 - Step 5: Solve for x
x = 1,177,780,040,907,613.75/39,335,719.05 - Step 6: Final answer
x = 29,941,744.28
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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.