Finding the Fourth Proportional to 9,859,997.80, 14,789,996.70 and 8,201,117.80
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Solution
The fourth proportional to 9,859,997.80, 14,789,996.70 and 8,201,117.80 is: 12,301,676.70
Step by Step Solution
- Step 1: Write the proportion equation
9,859,997.80 : 14,789,996.70 = 8,201,117.80 : x - Step 2: Convert to fraction form
9,859,997.80/14,789,996.70 = 8,201,117.80/x - Step 3: Cross multiply
9,859,997.80x = 14,789,996.70 × 8,201,117.80 - Step 4: Simplify right side
9,859,997.80x = 121,294,505,198,311.25 - Step 5: Solve for x
x = 121,294,505,198,311.25/9,859,997.80 - Step 6: Final answer
x = 12,301,676.70
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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.