Finding the Fourth Proportional to 5,145,268.80, 7,100,005.68 and 2,853,422.40
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Solution
The fourth proportional to 5,145,268.80, 7,100,005.68 and 2,853,422.40 is: 3,937,464.89
Step by Step Solution
- Step 1: Write the proportion equation
5,145,268.80 : 7,100,005.68 = 2,853,422.40 : x - Step 2: Convert to fraction form
5,145,268.80/7,100,005.68 = 2,853,422.40/x - Step 3: Cross multiply
5,145,268.80x = 7,100,005.68 × 2,853,422.40 - Step 4: Simplify right side
5,145,268.80x = 20,259,315,247,439.23 - Step 5: Solve for x
x = 20,259,315,247,439.23/5,145,268.80 - Step 6: Final answer
x = 3,937,464.89
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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.