Finding the Fourth Proportional to 82,721,151.80, 124,081,727.70 and 22,136,877.80
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Solution
The fourth proportional to 82,721,151.80, 124,081,727.70 and 22,136,877.80 is: 33,205,316.70
Step by Step Solution
- Step 1: Write the proportion equation
82,721,151.80 : 124,081,727.70 = 22,136,877.80 : x - Step 2: Convert to fraction form
82,721,151.80/124,081,727.70 = 22,136,877.80/x - Step 3: Cross multiply
82,721,151.80x = 124,081,727.70 × 22,136,877.80 - Step 4: Simplify right side
82,721,151.80x = 2,746,782,043,307,775 - Step 5: Solve for x
x = 2,746,782,043,307,775/82,721,151.80 - Step 6: Final answer
x = 33,205,316.70
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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.