Finding the Fourth Proportional to 18,194,069.40, 27,283,230.90 and 7,407,785.40
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Solution
The fourth proportional to 18,194,069.40, 27,283,230.90 and 7,407,785.40 is: 11,108,472.50
Step by Step Solution
- Step 1: Write the proportion equation
18,194,069.40 : 27,283,230.90 = 7,407,785.40 : x - Step 2: Convert to fraction form
18,194,069.40/27,283,230.90 = 7,407,785.40/x - Step 3: Cross multiply
18,194,069.40x = 27,283,230.90 × 7,407,785.40 - Step 4: Simplify right side
18,194,069.40x = 202,108,319,525,848.84 - Step 5: Solve for x
x = 202,108,319,525,848.84/18,194,069.40 - Step 6: Final answer
x = 11,108,472.50
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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.