Finding the Fourth Proportional to 122,207,864.99, 168,650,049.97 and 66,456,546.08
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Solution
The fourth proportional to 122,207,864.99, 168,650,049.97 and 66,456,546.08 is: 91,711,771.72
Step by Step Solution
- Step 1: Write the proportion equation
122,207,864.99 : 168,650,049.97 = 66,456,546.08 : x - Step 2: Convert to fraction form
122,207,864.99/168,650,049.97 = 66,456,546.08/x - Step 3: Cross multiply
122,207,864.99x = 168,650,049.97 × 66,456,546.08 - Step 4: Simplify right side
122,207,864.99x = 11,207,899,816,340,490 - Step 5: Solve for x
x = 11,207,899,816,340,490/122,207,864.99 - Step 6: Final answer
x = 91,711,771.72
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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.