Finding the Fourth Proportional to 122,440,129.47, 168,967,378.72 and 67,435,985.97
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Solution
The fourth proportional to 122,440,129.47, 168,967,378.72 and 67,435,985.97 is: 93,061,660.67
Step by Step Solution
- Step 1: Write the proportion equation
122,440,129.47 : 168,967,378.72 = 67,435,985.97 : x - Step 2: Convert to fraction form
122,440,129.47/168,967,378.72 = 67,435,985.97/x - Step 3: Cross multiply
122,440,129.47x = 168,967,378.72 × 67,435,985.97 - Step 4: Simplify right side
122,440,129.47x = 11,394,481,780,833,892 - Step 5: Solve for x
x = 11,394,481,780,833,892/122,440,129.47 - Step 6: Final answer
x = 93,061,660.67
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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.