Finding the Fourth Proportional to 19,774,382.38, 27,288,865.97 and 10,953,968.76
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Solution
The fourth proportional to 19,774,382.38, 27,288,865.97 and 10,953,968.76 is: 15,116,597.81
Step by Step Solution
- Step 1: Write the proportion equation
19,774,382.38 : 27,288,865.97 = 10,953,968.76 : x - Step 2: Convert to fraction form
19,774,382.38/27,288,865.97 = 10,953,968.76/x - Step 3: Cross multiply
19,774,382.38x = 27,288,865.97 × 10,953,968.76 - Step 4: Simplify right side
19,774,382.38x = 298,921,385,317,514.62 - Step 5: Solve for x
x = 298,921,385,317,514.62/19,774,382.38 - Step 6: Final answer
x = 15,116,597.81
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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.