Finding the Fourth Proportional to 8,430,796.80, 11,631,387.24 and 5,531,797.08
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Solution
The fourth proportional to 8,430,796.80, 11,631,387.24 and 5,531,797.08 is: 7,631,837.83
Step by Step Solution
- Step 1: Write the proportion equation
8,430,796.80 : 11,631,387.24 = 5,531,797.08 : x - Step 2: Convert to fraction form
8,430,796.80/11,631,387.24 = 5,531,797.08/x - Step 3: Cross multiply
8,430,796.80x = 11,631,387.24 × 5,531,797.08 - Step 4: Simplify right side
8,430,796.80x = 64,342,473,970,581.26 - Step 5: Solve for x
x = 64,342,473,970,581.26/8,430,796.80 - Step 6: Final answer
x = 7,631,837.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.