Finding the Fourth Proportional to 12,535,370.21, 17,302,398.12 and 7,381,721.12
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Solution
The fourth proportional to 12,535,370.21, 17,302,398.12 and 7,381,721.12 is: 10,188,887.55
Step by Step Solution
- Step 1: Write the proportion equation
12,535,370.21 : 17,302,398.12 = 7,381,721.12 : x - Step 2: Convert to fraction form
12,535,370.21/17,302,398.12 = 7,381,721.12/x - Step 3: Cross multiply
12,535,370.21x = 17,302,398.12 × 7,381,721.12 - Step 4: Simplify right side
12,535,370.21x = 127,721,477,542,540.31 - Step 5: Solve for x
x = 127,721,477,542,540.31/12,535,370.21 - Step 6: Final answer
x = 10,188,887.55
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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.