Finding the Fourth Proportional to 30,641,842.13, 42,285,397.75 and 16,702,891.99
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Solution
The fourth proportional to 30,641,842.13, 42,285,397.75 and 16,702,891.99 is: 23,049,803.22
Step by Step Solution
- Step 1: Write the proportion equation
30,641,842.13 : 42,285,397.75 = 16,702,891.99 : x - Step 2: Convert to fraction form
30,641,842.13/42,285,397.75 = 16,702,891.99/x - Step 3: Cross multiply
30,641,842.13x = 42,285,397.75 × 16,702,891.99 - Step 4: Simplify right side
30,641,842.13x = 706,288,431,224,968.38 - Step 5: Solve for x
x = 706,288,431,224,968.38/30,641,842.13 - Step 6: Final answer
x = 23,049,803.22
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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.