Finding the Fourth Proportional to 82,860,841.20, 124,291,261.80 and 52,702,402.80
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Solution
The fourth proportional to 82,860,841.20, 124,291,261.80 and 52,702,402.80 is: 79,053,604.20
Step by Step Solution
- Step 1: Write the proportion equation
82,860,841.20 : 124,291,261.80 = 52,702,402.80 : x - Step 2: Convert to fraction form
82,860,841.20/124,291,261.80 = 52,702,402.80/x - Step 3: Cross multiply
82,860,841.20x = 124,291,261.80 × 52,702,402.80 - Step 4: Simplify right side
82,860,841.20x = 6,550,448,143,903,853 - Step 5: Solve for x
x = 6,550,448,143,903,853/82,860,841.20 - Step 6: Final answer
x = 79,053,604.20
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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.