Finding the Fourth Proportional to 21,420,057.24, 29,558,849.91 and 11,630,277.36
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Solution
The fourth proportional to 21,420,057.24, 29,558,849.91 and 11,630,277.36 is: 16,049,332.60
Step by Step Solution
- Step 1: Write the proportion equation
21,420,057.24 : 29,558,849.91 = 11,630,277.36 : x - Step 2: Convert to fraction form
21,420,057.24/29,558,849.91 = 11,630,277.36/x - Step 3: Cross multiply
21,420,057.24x = 29,558,849.91 × 11,630,277.36 - Step 4: Simplify right side
21,420,057.24x = 343,777,622,895,911 - Step 5: Solve for x
x = 343,777,622,895,911/21,420,057.24 - Step 6: Final answer
x = 16,049,332.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.