Finding the Fourth Proportional to 17,686,329.40, 26,557,487.70 and 13,431,302.20
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Solution
The fourth proportional to 17,686,329.40, 26,557,487.70 and 13,431,302.20 is: 20,168,212.12
Step by Step Solution
- Step 1: Write the proportion equation
17,686,329.40 : 26,557,487.70 = 13,431,302.20 : x - Step 2: Convert to fraction form
17,686,329.40/26,557,487.70 = 13,431,302.20/x - Step 3: Cross multiply
17,686,329.40x = 26,557,487.70 × 13,431,302.20 - Step 4: Simplify right side
17,686,329.40x = 356,701,642,971,482.94 - Step 5: Solve for x
x = 356,701,642,971,482.94/17,686,329.40 - Step 6: Final answer
x = 20,168,212.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.