Finding the Fourth Proportional to 122,453,952.84, 168,985,006.80 and 66,699,198.16
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Solution
The fourth proportional to 122,453,952.84, 168,985,006.80 and 66,699,198.16 is: 92,044,104.69
Step by Step Solution
- Step 1: Write the proportion equation
122,453,952.84 : 168,985,006.80 = 66,699,198.16 : x - Step 2: Convert to fraction form
122,453,952.84/168,985,006.80 = 66,699,198.16/x - Step 3: Cross multiply
122,453,952.84x = 168,985,006.80 × 66,699,198.16 - Step 4: Simplify right side
122,453,952.84x = 11,271,164,454,622,148 - Step 5: Solve for x
x = 11,271,164,454,622,148/122,453,952.84 - Step 6: Final answer
x = 92,044,104.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.