Finding the Fourth Proportional to 8,686,597.76, 13,021,851.08 and 3,218,645.95
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Solution
The fourth proportional to 8,686,597.76, 13,021,851.08 and 3,218,645.95 is: 4,824,987.80
Step by Step Solution
- Step 1: Write the proportion equation
8,686,597.76 : 13,021,851.08 = 3,218,645.95 : x - Step 2: Convert to fraction form
8,686,597.76/13,021,851.08 = 3,218,645.95/x - Step 3: Cross multiply
8,686,597.76x = 13,021,851.08 × 3,218,645.95 - Step 4: Simplify right side
8,686,597.76x = 41,912,728,205,563.33 - Step 5: Solve for x
x = 41,912,728,205,563.33/8,686,597.76 - Step 6: Final answer
x = 4,824,987.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.