Finding the Fourth Proportional to 39,861,238.59, 55,008,509.67 and 21,526,524.09
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Solution
The fourth proportional to 39,861,238.59, 55,008,509.67 and 21,526,524.09 is: 29,706,603.47
Step by Step Solution
- Step 1: Write the proportion equation
39,861,238.59 : 55,008,509.67 = 21,526,524.09 : x - Step 2: Convert to fraction form
39,861,238.59/55,008,509.67 = 21,526,524.09/x - Step 3: Cross multiply
39,861,238.59x = 55,008,509.67 × 21,526,524.09 - Step 4: Simplify right side
39,861,238.59x = 1,184,142,008,566,253 - Step 5: Solve for x
x = 1,184,142,008,566,253/39,861,238.59 - Step 6: Final answer
x = 29,706,603.47
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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.