Finding the Fourth Proportional to 852,988,416.54, 1,279,530,486.09 and 239,524,812.06
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Solution
The fourth proportional to 852,988,416.54, 1,279,530,486.09 and 239,524,812.06 is: 359,300,657.86
Step by Step Solution
- Step 1: Write the proportion equation
852,988,416.54 : 1,279,530,486.09 = 239,524,812.06 : x - Step 2: Convert to fraction form
852,988,416.54/1,279,530,486.09 = 239,524,812.06/x - Step 3: Cross multiply
852,988,416.54x = 1,279,530,486.09 × 239,524,812.06 - Step 4: Simplify right side
852,988,416.54x = 306,479,299,205,747,648 - Step 5: Solve for x
x = 306,479,299,205,747,648/852,988,416.54 - Step 6: Final answer
x = 359,300,657.86
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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.