Finding the Fourth Proportional to 13,081,782.64, 18,052,860.24 and 7,281,934.48
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Solution
The fourth proportional to 13,081,782.64, 18,052,860.24 and 7,281,934.48 is: 10,049,069.69
Step by Step Solution
- Step 1: Write the proportion equation
13,081,782.64 : 18,052,860.24 = 7,281,934.48 : x - Step 2: Convert to fraction form
13,081,782.64/18,052,860.24 = 7,281,934.48/x - Step 3: Cross multiply
13,081,782.64x = 18,052,860.24 × 7,281,934.48 - Step 4: Simplify right side
13,081,782.64x = 131,459,745,444,277.08 - Step 5: Solve for x
x = 131,459,745,444,277.08/13,081,782.64 - Step 6: Final answer
x = 10,049,069.69
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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.