Finding the Fourth Proportional to 82,950,478.40, 124,207,989.60 and 58,557,684.80
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Solution
The fourth proportional to 82,950,478.40, 124,207,989.60 and 58,557,684.80 is: 87,682,825.28
Step by Step Solution
- Step 1: Write the proportion equation
82,950,478.40 : 124,207,989.60 = 58,557,684.80 : x - Step 2: Convert to fraction form
82,950,478.40/124,207,989.60 = 58,557,684.80/x - Step 3: Cross multiply
82,950,478.40x = 124,207,989.60 × 58,557,684.80 - Step 4: Simplify right side
82,950,478.40x = 7,273,332,304,638,477 - Step 5: Solve for x
x = 7,273,332,304,638,477/82,950,478.40 - Step 6: Final answer
x = 87,682,825.28
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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.