Finding the Fourth Proportional to 18,227,166.30, 27,348,298.20 and 7,986,735.60
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Solution
The fourth proportional to 18,227,166.30, 27,348,298.20 and 7,986,735.60 is: 11,983,411.09
Step by Step Solution
- Step 1: Write the proportion equation
18,227,166.30 : 27,348,298.20 = 7,986,735.60 : x - Step 2: Convert to fraction form
18,227,166.30/27,348,298.20 = 7,986,735.60/x - Step 3: Cross multiply
18,227,166.30x = 27,348,298.20 × 7,986,735.60 - Step 4: Simplify right side
18,227,166.30x = 218,423,626,833,355.91 - Step 5: Solve for x
x = 218,423,626,833,355.91/18,227,166.30 - Step 6: Final answer
x = 11,983,411.09
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1.5x scale
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.