Finding the Fourth Proportional to 122,354,147.38, 168,853,178.98 and 66,596,874.96
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Solution
The fourth proportional to 122,354,147.38, 168,853,178.98 and 66,596,874.96 is: 91,906,112.61
Step by Step Solution
- Step 1: Write the proportion equation
122,354,147.38 : 168,853,178.98 = 66,596,874.96 : x - Step 2: Convert to fraction form
122,354,147.38/168,853,178.98 = 66,596,874.96/x - Step 3: Cross multiply
122,354,147.38x = 168,853,178.98 × 66,596,874.96 - Step 4: Simplify right side
122,354,147.38x = 11,245,094,047,129,560 - Step 5: Solve for x
x = 11,245,094,047,129,560/122,354,147.38 - Step 6: Final answer
x = 91,906,112.61
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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.