Finding the Fourth Proportional to 7,398,259.20, 11,097,388.80 and 2,079,475.20
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Solution
The fourth proportional to 7,398,259.20, 11,097,388.80 and 2,079,475.20 is: 3,119,212.80
Step by Step Solution
- Step 1: Write the proportion equation
7,398,259.20 : 11,097,388.80 = 2,079,475.20 : x - Step 2: Convert to fraction form
7,398,259.20/11,097,388.80 = 2,079,475.20/x - Step 3: Cross multiply
7,398,259.20x = 11,097,388.80 × 2,079,475.20 - Step 4: Simplify right side
7,398,259.20x = 23,076,744,794,357.76 - Step 5: Solve for x
x = 23,076,744,794,357.76/7,398,259.20 - Step 6: Final answer
x = 3,119,212.80
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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.