Finding the Fourth Proportional to 21,530,689.94, 29,713,069.68 and 11,741,670.74
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Solution
The fourth proportional to 21,530,689.94, 29,713,069.68 and 11,741,670.74 is: 16,203,896.94
Step by Step Solution
- Step 1: Write the proportion equation
21,530,689.94 : 29,713,069.68 = 11,741,670.74 : x - Step 2: Convert to fraction form
21,530,689.94/29,713,069.68 = 11,741,670.74/x - Step 3: Cross multiply
21,530,689.94x = 29,713,069.68 × 11,741,670.74 - Step 4: Simplify right side
21,530,689.94x = 348,881,080,857,237.19 - Step 5: Solve for x
x = 348,881,080,857,237.19/21,530,689.94 - Step 6: Final answer
x = 16,203,896.94
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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.