Finding the Fourth Proportional to 39,861,235.05, 55,008,504.84 and 21,526,520.55
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Solution
The fourth proportional to 39,861,235.05, 55,008,504.84 and 21,526,520.55 is: 29,706,598.61
Step by Step Solution
- Step 1: Write the proportion equation
39,861,235.05 : 55,008,504.84 = 21,526,520.55 : x - Step 2: Convert to fraction form
39,861,235.05/55,008,504.84 = 21,526,520.55/x - Step 3: Cross multiply
39,861,235.05x = 55,008,504.84 × 21,526,520.55 - Step 4: Simplify right side
39,861,235.05x = 1,184,141,709,863,034.50 - Step 5: Solve for x
x = 1,184,141,709,863,034.50/39,861,235.05 - Step 6: Final answer
x = 29,706,598.61
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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.