Finding the Fourth Proportional to 204,790,987.68, 282,611,588.40 and 111,971,559.84
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Solution
The fourth proportional to 204,790,987.68, 282,611,588.40 and 111,971,559.84 is: 154,520,766.47
Step by Step Solution
- Step 1: Write the proportion equation
204,790,987.68 : 282,611,588.40 = 111,971,559.84 : x - Step 2: Convert to fraction form
204,790,987.68/282,611,588.40 = 111,971,559.84/x - Step 3: Cross multiply
204,790,987.68x = 282,611,588.40 × 111,971,559.84 - Step 4: Simplify right side
204,790,987.68x = 31,644,460,382,008,048 - Step 5: Solve for x
x = 31,644,460,382,008,048/204,790,987.68 - Step 6: Final answer
x = 154,520,766.47
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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.