Finding the Fourth Proportional to 18,202,149.36, 25,118,816.76 and 9,942,216.84
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Solution
The fourth proportional to 18,202,149.36, 25,118,816.76 and 9,942,216.84 is: 13,720,177.66
Step by Step Solution
- Step 1: Write the proportion equation
18,202,149.36 : 25,118,816.76 = 9,942,216.84 : x - Step 2: Convert to fraction form
18,202,149.36/25,118,816.76 = 9,942,216.84/x - Step 3: Cross multiply
18,202,149.36x = 25,118,816.76 × 9,942,216.84 - Step 4: Simplify right side
18,202,149.36x = 249,736,722,992,146.25 - Step 5: Solve for x
x = 249,736,722,992,146.25/18,202,149.36 - Step 6: Final answer
x = 13,720,177.66
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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.