Finding the Fourth Proportional to 21,420,057.36, 29,558,850.09 and 11,630,277.48
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Solution
The fourth proportional to 21,420,057.36, 29,558,850.09 and 11,630,277.48 is: 16,049,332.77
Step by Step Solution
- Step 1: Write the proportion equation
21,420,057.36 : 29,558,850.09 = 11,630,277.48 : x - Step 2: Convert to fraction form
21,420,057.36/29,558,850.09 = 11,630,277.48/x - Step 3: Cross multiply
21,420,057.36x = 29,558,850.09 × 11,630,277.48 - Step 4: Simplify right side
21,420,057.36x = 343,777,628,417,704.44 - Step 5: Solve for x
x = 343,777,628,417,704.44/21,420,057.36 - Step 6: Final answer
x = 16,049,332.77
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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.