Finding the Fourth Proportional to 6,738,406.30, 10,107,609.45 and 6,561,259.30
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Solution
The fourth proportional to 6,738,406.30, 10,107,609.45 and 6,561,259.30 is: 9,841,888.95
Step by Step Solution
- Step 1: Write the proportion equation
6,738,406.30 : 10,107,609.45 = 6,561,259.30 : x - Step 2: Convert to fraction form
6,738,406.30/10,107,609.45 = 6,561,259.30/x - Step 3: Cross multiply
6,738,406.30x = 10,107,609.45 × 6,561,259.30 - Step 4: Simplify right side
6,738,406.30x = 66,318,646,504,580.38 - Step 5: Solve for x
x = 66,318,646,504,580.38/6,738,406.30 - Step 6: Final answer
x = 9,841,888.95
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Double scale
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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.