Finding the Fourth Proportional to 82,257,248.88, 122,650,472.35 and 79,997,296.05
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Solution
The fourth proportional to 82,257,248.88, 122,650,472.35 and 79,997,296.05 is: 119,280,747.66
Step by Step Solution
- Step 1: Write the proportion equation
82,257,248.88 : 122,650,472.35 = 79,997,296.05 : x - Step 2: Convert to fraction form
82,257,248.88/122,650,472.35 = 79,997,296.05/x - Step 3: Cross multiply
82,257,248.88x = 122,650,472.35 × 79,997,296.05 - Step 4: Simplify right side
82,257,248.88x = 9,811,706,147,055,296 - Step 5: Solve for x
x = 9,811,706,147,055,296/82,257,248.88 - Step 6: Final answer
x = 119,280,747.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.