Finding the Fourth Proportional to 18,465,043.67, 25,482,728.94 and 11,125,180.07
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Solution
The fourth proportional to 18,465,043.67, 25,482,728.94 and 11,125,180.07 is: 15,353,332.12
Step by Step Solution
- Step 1: Write the proportion equation
18,465,043.67 : 25,482,728.94 = 11,125,180.07 : x - Step 2: Convert to fraction form
18,465,043.67/25,482,728.94 = 11,125,180.07/x - Step 3: Cross multiply
18,465,043.67x = 25,482,728.94 × 11,125,180.07 - Step 4: Simplify right side
18,465,043.67x = 283,499,948,132,500.25 - Step 5: Solve for x
x = 283,499,948,132,500.25/18,465,043.67 - Step 6: Final answer
x = 15,353,332.12
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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.