Finding the Fourth Proportional to 18,931,086.10, 26,124,905.79 and 10,229,258.68
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Solution
The fourth proportional to 18,931,086.10, 26,124,905.79 and 10,229,258.68 is: 14,116,380.75
Step by Step Solution
- Step 1: Write the proportion equation
18,931,086.10 : 26,124,905.79 = 10,229,258.68 : x - Step 2: Convert to fraction form
18,931,086.10/26,124,905.79 = 10,229,258.68/x - Step 3: Cross multiply
18,931,086.10x = 26,124,905.79 × 10,229,258.68 - Step 4: Simplify right side
18,931,086.10x = 267,238,419,316,539.75 - Step 5: Solve for x
x = 267,238,419,316,539.75/18,931,086.10 - Step 6: Final answer
x = 14,116,380.75
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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.