Finding the Fourth Proportional to 19,932,265.50, 27,505,924.08 and 10,991,370.91
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Solution
The fourth proportional to 19,932,265.50, 27,505,924.08 and 10,991,370.91 is: 15,167,759.72
Step by Step Solution
- Step 1: Write the proportion equation
19,932,265.50 : 27,505,924.08 = 10,991,370.91 : x - Step 2: Convert to fraction form
19,932,265.50/27,505,924.08 = 10,991,370.91/x - Step 3: Cross multiply
19,932,265.50x = 27,505,924.08 × 10,991,370.91 - Step 4: Simplify right side
19,932,265.50x = 302,327,813,758,033.38 - Step 5: Solve for x
x = 302,327,813,758,033.38/19,932,265.50 - Step 6: Final answer
x = 15,167,759.72
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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.