Finding the Fourth Proportional to 82,812,078.80, 124,124,806.20 and 39,701,934.80
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Solution
The fourth proportional to 82,812,078.80, 124,124,806.20 and 39,701,934.80 is: 59,508,166.37
Step by Step Solution
- Step 1: Write the proportion equation
82,812,078.80 : 124,124,806.20 = 39,701,934.80 : x - Step 2: Convert to fraction form
82,812,078.80/124,124,806.20 = 39,701,934.80/x - Step 3: Cross multiply
82,812,078.80x = 124,124,806.20 × 39,701,934.80 - Step 4: Simplify right side
82,812,078.80x = 4,927,994,962,815,036 - Step 5: Solve for x
x = 4,927,994,962,815,036/82,812,078.80 - Step 6: Final answer
x = 59,508,166.37
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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.