Finding the Fourth Proportional to 20,189,425.23, 27,860,352.98 and 11,020,296.51
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Solution
The fourth proportional to 20,189,425.23, 27,860,352.98 and 11,020,296.51 is: 15,207,433.95
Step by Step Solution
- Step 1: Write the proportion equation
20,189,425.23 : 27,860,352.98 = 11,020,296.51 : x - Step 2: Convert to fraction form
20,189,425.23/27,860,352.98 = 11,020,296.51/x - Step 3: Cross multiply
20,189,425.23x = 27,860,352.98 × 11,020,296.51 - Step 4: Simplify right side
20,189,425.23x = 307,029,350,657,760.62 - Step 5: Solve for x
x = 307,029,350,657,760.62/20,189,425.23 - Step 6: Final answer
x = 15,207,433.95
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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.