Finding the Fourth Proportional to 38,992,206.68, 53,810,066.28 and 21,351,850.10
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Solution
The fourth proportional to 38,992,206.68, 53,810,066.28 and 21,351,850.10 is: 29,466,002.75
Step by Step Solution
- Step 1: Write the proportion equation
38,992,206.68 : 53,810,066.28 = 21,351,850.10 : x - Step 2: Convert to fraction form
38,992,206.68/53,810,066.28 = 21,351,850.10/x - Step 3: Cross multiply
38,992,206.68x = 53,810,066.28 × 21,351,850.10 - Step 4: Simplify right side
38,992,206.68x = 1,148,944,469,081,624.75 - Step 5: Solve for x
x = 1,148,944,469,081,624.75/38,992,206.68 - Step 6: Final answer
x = 29,466,002.75
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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.