Finding the Fourth Proportional to 19,790,568.09, 27,310,964.99 and 11,088,803.12
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Solution
The fourth proportional to 19,790,568.09, 27,310,964.99 and 11,088,803.12 is: 15,302,537.66
Step by Step Solution
- Step 1: Write the proportion equation
19,790,568.09 : 27,310,964.99 = 11,088,803.12 : x - Step 2: Convert to fraction form
19,790,568.09/27,310,964.99 = 11,088,803.12/x - Step 3: Cross multiply
19,790,568.09x = 27,310,964.99 × 11,088,803.12 - Step 4: Simplify right side
19,790,568.09x = 302,845,913,599,323.94 - Step 5: Solve for x
x = 302,845,913,599,323.94/19,790,568.09 - Step 6: Final answer
x = 15,302,537.66
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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.