Finding the Fourth Proportional to 7,917,745.60, 11,883,616.80 and 6,784,004.80
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Solution
The fourth proportional to 7,917,745.60, 11,883,616.80 and 6,784,004.80 is: 10,182,003.50
Step by Step Solution
- Step 1: Write the proportion equation
7,917,745.60 : 11,883,616.80 = 6,784,004.80 : x - Step 2: Convert to fraction form
7,917,745.60/11,883,616.80 = 6,784,004.80/x - Step 3: Cross multiply
7,917,745.60x = 11,883,616.80 × 6,784,004.80 - Step 4: Simplify right side
7,917,745.60x = 80,618,513,412,560.64 - Step 5: Solve for x
x = 80,618,513,412,560.64/7,917,745.60 - Step 6: Final answer
x = 10,182,003.50
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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.