Finding the Fourth Proportional to 7,744,480.81, 10,687,585.09 and 4,259,909.36
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Solution
The fourth proportional to 7,744,480.81, 10,687,585.09 and 4,259,909.36 is: 5,878,785.80
Step by Step Solution
- Step 1: Write the proportion equation
7,744,480.81 : 10,687,585.09 = 4,259,909.36 : x - Step 2: Convert to fraction form
7,744,480.81/10,687,585.09 = 4,259,909.36/x - Step 3: Cross multiply
7,744,480.81x = 10,687,585.09 × 4,259,909.36 - Step 4: Simplify right side
7,744,480.81x = 45,528,143,800,540.14 - Step 5: Solve for x
x = 45,528,143,800,540.14/7,744,480.81 - Step 6: Final answer
x = 5,878,785.80
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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.