Finding the Fourth Proportional to 82,944,388.80, 124,416,583.20 and 76,897,771.20
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Solution
The fourth proportional to 82,944,388.80, 124,416,583.20 and 76,897,771.20 is: 115,346,656.80
Step by Step Solution
- Step 1: Write the proportion equation
82,944,388.80 : 124,416,583.20 = 76,897,771.20 : x - Step 2: Convert to fraction form
82,944,388.80/124,416,583.20 = 76,897,771.20/x - Step 3: Cross multiply
82,944,388.80x = 124,416,583.20 × 76,897,771.20 - Step 4: Simplify right side
82,944,388.80x = 9,567,357,948,399,364 - Step 5: Solve for x
x = 9,567,357,948,399,364/82,944,388.80 - Step 6: Final answer
x = 115,346,656.80
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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.