Finding the Fourth Proportional to 21,630,663.87, 29,850,313.91 and 11,707,544.84
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Solution
The fourth proportional to 21,630,663.87, 29,850,313.91 and 11,707,544.84 is: 16,156,410.67
Step by Step Solution
- Step 1: Write the proportion equation
21,630,663.87 : 29,850,313.91 = 11,707,544.84 : x - Step 2: Convert to fraction form
21,630,663.87/29,850,313.91 = 11,707,544.84/x - Step 3: Cross multiply
21,630,663.87x = 29,850,313.91 × 11,707,544.84 - Step 4: Simplify right side
21,630,663.87x = 349,473,888,381,611.50 - Step 5: Solve for x
x = 349,473,888,381,611.50/21,630,663.87 - Step 6: Final answer
x = 16,156,410.67
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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.