Finding the Fourth Proportional to 38,465,083.68, 53,081,412.64 and 20,823,591.68
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Solution
The fourth proportional to 38,465,083.68, 53,081,412.64 and 20,823,591.68 is: 28,736,338.44
Step by Step Solution
- Step 1: Write the proportion equation
38,465,083.68 : 53,081,412.64 = 20,823,591.68 : x - Step 2: Convert to fraction form
38,465,083.68/53,081,412.64 = 20,823,591.68/x - Step 3: Cross multiply
38,465,083.68x = 53,081,412.64 × 20,823,591.68 - Step 4: Simplify right side
38,465,083.68x = 1,105,345,662,612,950.88 - Step 5: Solve for x
x = 1,105,345,662,612,950.88/38,465,083.68 - Step 6: Final answer
x = 28,736,338.44
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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.