Finding the Fourth Proportional to 82,999,097.20, 124,498,645.80 and 39,857,897.80
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Solution
The fourth proportional to 82,999,097.20, 124,498,645.80 and 39,857,897.80 is: 59,786,846.70
Step by Step Solution
- Step 1: Write the proportion equation
82,999,097.20 : 124,498,645.80 = 39,857,897.80 : x - Step 2: Convert to fraction form
82,999,097.20/124,498,645.80 = 39,857,897.80/x - Step 3: Cross multiply
82,999,097.20x = 124,498,645.80 × 39,857,897.80 - Step 4: Simplify right side
82,999,097.20x = 4,962,254,300,534,799 - Step 5: Solve for x
x = 4,962,254,300,534,799/82,999,097.20 - Step 6: Final answer
x = 59,786,846.70
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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.