Finding the Fourth Proportional to 7,285,489.36, 10,053,775.21 and 4,022,244.79
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Solution
The fourth proportional to 7,285,489.36, 10,053,775.21 and 4,022,244.79 is: 5,550,587.33
Step by Step Solution
- Step 1: Write the proportion equation
7,285,489.36 : 10,053,775.21 = 4,022,244.79 : x - Step 2: Convert to fraction form
7,285,489.36/10,053,775.21 = 4,022,244.79/x - Step 3: Cross multiply
7,285,489.36x = 10,053,775.21 × 4,022,244.79 - Step 4: Simplify right side
7,285,489.36x = 40,438,744,938,142.43 - Step 5: Solve for x
x = 40,438,744,938,142.43/7,285,489.36 - Step 6: Final answer
x = 5,550,587.33
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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.