Finding the Fourth Proportional to 13,109,027.44, 18,091,534.92 and 7,229,811.53
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Solution
The fourth proportional to 13,109,027.44, 18,091,534.92 and 7,229,811.53 is: 9,977,733.92
Step by Step Solution
- Step 1: Write the proportion equation
13,109,027.44 : 18,091,534.92 = 7,229,811.53 : x - Step 2: Convert to fraction form
13,109,027.44/18,091,534.92 = 7,229,811.53/x - Step 3: Cross multiply
13,109,027.44x = 18,091,534.92 × 7,229,811.53 - Step 4: Simplify right side
13,109,027.44x = 130,798,387,669,555.97 - Step 5: Solve for x
x = 130,798,387,669,555.97/13,109,027.44 - Step 6: Final answer
x = 9,977,733.92
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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.