Finding the Fourth Proportional to 18,933,638.56, 26,125,418.64 and 10,785,035.68
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Solution
The fourth proportional to 18,933,638.56, 26,125,418.64 and 10,785,035.68 is: 14,881,638.90
Step by Step Solution
- Step 1: Write the proportion equation
18,933,638.56 : 26,125,418.64 = 10,785,035.68 : x - Step 2: Convert to fraction form
18,933,638.56/26,125,418.64 = 10,785,035.68/x - Step 3: Cross multiply
18,933,638.56x = 26,125,418.64 × 10,785,035.68 - Step 4: Simplify right side
18,933,638.56x = 281,763,572,187,337.06 - Step 5: Solve for x
x = 281,763,572,187,337.06/18,933,638.56 - Step 6: Final answer
x = 14,881,638.90
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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.