Finding the Fourth Proportional to 122,147,623.22, 168,564,848.55 and 66,393,174.79
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Solution
The fourth proportional to 122,147,623.22, 168,564,848.55 and 66,393,174.79 is: 91,623,194.60
Step by Step Solution
- Step 1: Write the proportion equation
122,147,623.22 : 168,564,848.55 = 66,393,174.79 : x - Step 2: Convert to fraction form
122,147,623.22/168,564,848.55 = 66,393,174.79/x - Step 3: Cross multiply
122,147,623.22x = 168,564,848.55 × 66,393,174.79 - Step 4: Simplify right side
122,147,623.22x = 11,191,555,452,387,204 - Step 5: Solve for x
x = 11,191,555,452,387,204/122,147,623.22 - Step 6: Final answer
x = 91,623,194.60
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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.