Finding the Fourth Proportional to 82,944,281.80, 124,416,422.70 and 81,174,809.80
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Solution
The fourth proportional to 82,944,281.80, 124,416,422.70 and 81,174,809.80 is: 121,762,214.70
Step by Step Solution
- Step 1: Write the proportion equation
82,944,281.80 : 124,416,422.70 = 81,174,809.80 : x - Step 2: Convert to fraction form
82,944,281.80/124,416,422.70 = 81,174,809.80/x - Step 3: Cross multiply
82,944,281.80x = 124,416,422.70 × 81,174,809.80 - Step 4: Simplify right side
82,944,281.80x = 10,099,479,448,668,902 - Step 5: Solve for x
x = 10,099,479,448,668,902/82,944,281.80 - Step 6: Final answer
x = 121,762,214.70
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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.