Finding the Fourth Proportional to 82,912,154.40, 124,368,231.60 and 39,759,145.20
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Solution
The fourth proportional to 82,912,154.40, 124,368,231.60 and 39,759,145.20 is: 59,638,717.80
Step by Step Solution
- Step 1: Write the proportion equation
82,912,154.40 : 124,368,231.60 = 39,759,145.20 : x - Step 2: Convert to fraction form
82,912,154.40/124,368,231.60 = 39,759,145.20/x - Step 3: Cross multiply
82,912,154.40x = 124,368,231.60 × 39,759,145.20 - Step 4: Simplify right side
82,912,154.40x = 4,944,774,578,451,628 - Step 5: Solve for x
x = 4,944,774,578,451,628/82,912,154.40 - Step 6: Final answer
x = 59,638,717.80
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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.