Finding the Fourth Proportional to 18,404,129.34, 27,603,201.06 and 8,688,723.66
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Solution
The fourth proportional to 18,404,129.34, 27,603,201.06 and 8,688,723.66 is: 13,031,672.50
Step by Step Solution
- Step 1: Write the proportion equation
18,404,129.34 : 27,603,201.06 = 8,688,723.66 : x - Step 2: Convert to fraction form
18,404,129.34/27,603,201.06 = 8,688,723.66/x - Step 3: Cross multiply
18,404,129.34x = 27,603,201.06 × 8,688,723.66 - Step 4: Simplify right side
18,404,129.34x = 239,836,586,141,759.06 - Step 5: Solve for x
x = 239,836,586,141,759.06/18,404,129.34 - Step 6: Final answer
x = 13,031,672.50
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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.