Finding the Fourth Proportional to 39,960,927.94, 55,146,079.86 and 21,626,213.44
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Solution
The fourth proportional to 39,960,927.94, 55,146,079.86 and 21,626,213.44 is: 29,844,174.17
Step by Step Solution
- Step 1: Write the proportion equation
39,960,927.94 : 55,146,079.86 = 21,626,213.44 : x - Step 2: Convert to fraction form
39,960,927.94/55,146,079.86 = 21,626,213.44/x - Step 3: Cross multiply
39,960,927.94x = 55,146,079.86 × 21,626,213.44 - Step 4: Simplify right side
39,960,927.94x = 1,192,600,893,431,645.50 - Step 5: Solve for x
x = 1,192,600,893,431,645.50/39,960,927.94 - Step 6: Final answer
x = 29,844,174.17
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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.