Finding the Fourth Proportional to 2,181,419,874.26, 3,272,589,425.21 and 707,444,751.20
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Solution
The fourth proportional to 2,181,419,874.26, 3,272,589,425.21 and 707,444,751.20 is: 1,061,316,181.72
Step by Step Solution
- Step 1: Write the proportion equation
2,181,419,874.26 : 3,272,589,425.21 = 707,444,751.20 : x - Step 2: Convert to fraction form
2,181,419,874.26/3,272,589,425.21 = 707,444,751.20/x - Step 3: Cross multiply
2,181,419,874.26x = 3,272,589,425.21 × 707,444,751.20 - Step 4: Simplify right side
2,181,419,874.26x = 2,315,176,211,677,539,328 - Step 5: Solve for x
x = 2,315,176,211,677,539,328/2,181,419,874.26 - Step 6: Final answer
x = 1,061,316,181.72
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1.5x scale
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.