Finding the Fourth Proportional to 39,960,927.81, 55,146,079.70 and 21,626,213.31
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Solution
The fourth proportional to 39,960,927.81, 55,146,079.70 and 21,626,213.31 is: 29,844,174.00
Step by Step Solution
- Step 1: Write the proportion equation
39,960,927.81 : 55,146,079.70 = 21,626,213.31 : x - Step 2: Convert to fraction form
39,960,927.81/55,146,079.70 = 21,626,213.31/x - Step 3: Cross multiply
39,960,927.81x = 55,146,079.70 × 21,626,213.31 - Step 4: Simplify right side
39,960,927.81x = 1,192,600,882,694,329.75 - Step 5: Solve for x
x = 1,192,600,882,694,329.75/39,960,927.81 - Step 6: Final answer
x = 29,844,174.00
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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.