Finding the Fourth Proportional to 15,110,482.58, 20,849,912.99 and 8,494,189.75
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Solution
The fourth proportional to 15,110,482.58, 20,849,912.99 and 8,494,189.75 is: 11,720,546.73
Step by Step Solution
- Step 1: Write the proportion equation
15,110,482.58 : 20,849,912.99 = 8,494,189.75 : x - Step 2: Convert to fraction form
15,110,482.58/20,849,912.99 = 8,494,189.75/x - Step 3: Cross multiply
15,110,482.58x = 20,849,912.99 × 8,494,189.75 - Step 4: Simplify right side
15,110,482.58x = 177,103,117,223,494.53 - Step 5: Solve for x
x = 177,103,117,223,494.53/15,110,482.58 - Step 6: Final answer
x = 11,720,546.73
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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.