Finding the Fourth Proportional to 13,093,994.21, 18,070,275.17 and 7,292,778.53
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Solution
The fourth proportional to 13,093,994.21, 18,070,275.17 and 7,292,778.53 is: 10,064,348.03
Step by Step Solution
- Step 1: Write the proportion equation
13,093,994.21 : 18,070,275.17 = 7,292,778.53 : x - Step 2: Convert to fraction form
13,093,994.21/18,070,275.17 = 7,292,778.53/x - Step 3: Cross multiply
13,093,994.21x = 18,070,275.17 × 7,292,778.53 - Step 4: Simplify right side
13,093,994.21x = 131,782,514,790,968.12 - Step 5: Solve for x
x = 131,782,514,790,968.12/13,093,994.21 - Step 6: Final answer
x = 10,064,348.03
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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.