Finding the Fourth Proportional to 7,821,334.60, 11,732,001.90 and 6,561,622.60
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Solution
The fourth proportional to 7,821,334.60, 11,732,001.90 and 6,561,622.60 is: 9,842,433.90
Step by Step Solution
- Step 1: Write the proportion equation
7,821,334.60 : 11,732,001.90 = 6,561,622.60 : x - Step 2: Convert to fraction form
7,821,334.60/11,732,001.90 = 6,561,622.60/x - Step 3: Cross multiply
7,821,334.60x = 11,732,001.90 × 6,561,622.60 - Step 4: Simplify right side
7,821,334.60x = 76,980,968,810,282.94 - Step 5: Solve for x
x = 76,980,968,810,282.94/7,821,334.60 - Step 6: Final answer
x = 9,842,433.90
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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.