Finding the Fourth Proportional to 18,820,474.87, 25,972,268.11 and 10,559,396.75
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Solution
The fourth proportional to 18,820,474.87, 25,972,268.11 and 10,559,396.75 is: 14,571,974.69
Step by Step Solution
- Step 1: Write the proportion equation
18,820,474.87 : 25,972,268.11 = 10,559,396.75 : x - Step 2: Convert to fraction form
18,820,474.87/25,972,268.11 = 10,559,396.75/x - Step 3: Cross multiply
18,820,474.87x = 25,972,268.11 × 10,559,396.75 - Step 4: Simplify right side
18,820,474.87x = 274,251,483,470,862.62 - Step 5: Solve for x
x = 274,251,483,470,862.62/18,820,474.87 - Step 6: Final answer
x = 14,571,974.69
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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.