Finding the Fourth Proportional to 21,584,911.44, 29,790,216.09 and 13,741,918.50
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Solution
The fourth proportional to 21,584,911.44, 29,790,216.09 and 13,741,918.50 is: 18,965,781.85
Step by Step Solution
- Step 1: Write the proportion equation
21,584,911.44 : 29,790,216.09 = 13,741,918.50 : x - Step 2: Convert to fraction form
21,584,911.44/29,790,216.09 = 13,741,918.50/x - Step 3: Cross multiply
21,584,911.44x = 29,790,216.09 × 13,741,918.50 - Step 4: Simplify right side
21,584,911.44x = 409,374,721,606,168.69 - Step 5: Solve for x
x = 409,374,721,606,168.69/21,584,911.44 - Step 6: Final answer
x = 18,965,781.85
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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.