Finding the Fourth Proportional to 28,007,836.13, 38,651,497.29 and 15,617,808.62
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Solution
The fourth proportional to 28,007,836.13, 38,651,497.29 and 15,617,808.62 is: 21,552,956.99
Step by Step Solution
- Step 1: Write the proportion equation
28,007,836.13 : 38,651,497.29 = 15,617,808.62 : x - Step 2: Convert to fraction form
28,007,836.13/38,651,497.29 = 15,617,808.62/x - Step 3: Cross multiply
28,007,836.13x = 38,651,497.29 × 15,617,808.62 - Step 4: Simplify right side
28,007,836.13x = 603,651,687,551,668.62 - Step 5: Solve for x
x = 603,651,687,551,668.62/28,007,836.13 - Step 6: Final answer
x = 21,552,956.99
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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.