Finding the Fourth Proportional to 122,127,430.70, 183,489,744.45 and 91,894,342.70
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Solution
The fourth proportional to 122,127,430.70, 183,489,744.45 and 91,894,342.70 is: 138,066,193.33
Step by Step Solution
- Step 1: Write the proportion equation
122,127,430.70 : 183,489,744.45 = 91,894,342.70 : x - Step 2: Convert to fraction form
122,127,430.70/183,489,744.45 = 91,894,342.70/x - Step 3: Cross multiply
122,127,430.70x = 183,489,744.45 × 91,894,342.70 - Step 4: Simplify right side
122,127,430.70x = 16,861,669,458,423,722 - Step 5: Solve for x
x = 16,861,669,458,423,722/122,127,430.70 - Step 6: Final answer
x = 138,066,193.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.