Finding the Fourth Proportional to 39,228,723.05, 54,136,135.76 and 21,589,656.48
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Solution
The fourth proportional to 39,228,723.05, 54,136,135.76 and 21,589,656.48 is: 29,793,999.99
Step by Step Solution
- Step 1: Write the proportion equation
39,228,723.05 : 54,136,135.76 = 21,589,656.48 : x - Step 2: Convert to fraction form
39,228,723.05/54,136,135.76 = 21,589,656.48/x - Step 3: Cross multiply
39,228,723.05x = 54,136,135.76 × 21,589,656.48 - Step 4: Simplify right side
39,228,723.05x = 1,168,780,574,105,095.50 - Step 5: Solve for x
x = 1,168,780,574,105,095.50/39,228,723.05 - Step 6: Final answer
x = 29,793,999.99
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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.