Finding the Fourth Proportional to 18,261,021.60, 27,389,458.80 and 4,799,210.40
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Solution
The fourth proportional to 18,261,021.60, 27,389,458.80 and 4,799,210.40 is: 7,198,270.63
Step by Step Solution
- Step 1: Write the proportion equation
18,261,021.60 : 27,389,458.80 = 4,799,210.40 : x - Step 2: Convert to fraction form
18,261,021.60/27,389,458.80 = 4,799,210.40/x - Step 3: Cross multiply
18,261,021.60x = 27,389,458.80 × 4,799,210.40 - Step 4: Simplify right side
18,261,021.60x = 131,447,775,523,331.53 - Step 5: Solve for x
x = 131,447,775,523,331.53/18,261,021.60 - Step 6: Final answer
x = 7,198,270.63
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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.