Finding the Fourth Proportional to 82,218,963.08, 123,288,088.30 and 40,671,835.99
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Solution
The fourth proportional to 82,218,963.08, 123,288,088.30 and 40,671,835.99 is: 60,987,790.63
Step by Step Solution
- Step 1: Write the proportion equation
82,218,963.08 : 123,288,088.30 = 40,671,835.99 : x - Step 2: Convert to fraction form
82,218,963.08/123,288,088.30 = 40,671,835.99/x - Step 3: Cross multiply
82,218,963.08x = 123,288,088.30 × 40,671,835.99 - Step 4: Simplify right side
82,218,963.08x = 5,014,352,906,448,338 - Step 5: Solve for x
x = 5,014,352,906,448,338/82,218,963.08 - Step 6: Final answer
x = 60,987,790.63
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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.