Finding the Fourth Proportional to 239,247,943.05, 330,223,591.26 and 155,823,958.74
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Solution
The fourth proportional to 239,247,943.05, 330,223,591.26 and 155,823,958.74 is: 215,077,072.78
Step by Step Solution
- Step 1: Write the proportion equation
239,247,943.05 : 330,223,591.26 = 155,823,958.74 : x - Step 2: Convert to fraction form
239,247,943.05/330,223,591.26 = 155,823,958.74/x - Step 3: Cross multiply
239,247,943.05x = 330,223,591.26 × 155,823,958.74 - Step 4: Simplify right side
239,247,943.05x = 51,456,747,259,472,864 - Step 5: Solve for x
x = 51,456,747,259,472,864/239,247,943.05 - Step 6: Final answer
x = 215,077,072.78
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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.